Category: Monthly Reviews

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Weather in Shoreham – October 2019

 

Changeable and Wet 

Temperatures

The average maximum temperature during October 2019 in Shoreham was 14.9 Celsius (59F), and that was very close to normal for the time of year. The average minimum temperature was 9.6 Celsius (50F), and that was also very close to the October normal.    

The highest temperature recorded during the month was 18.4 Celsius (65F) on the 1st, but there were highs of 17.3 Celsius (63F) and 17.4 Celsius (63F) on the 6th and 13th respectively.  There were a further 9 days when the temperature exceeded 16 Celsius (61F), but only 2 of these milder days occurred after mid month.  There were 9 days when the temperature failed to reach 13 Celsius (55F), but only 1 day, the 12th with a high of 12.7 Celsius (55F), occurred before mid month. A chilly end to the month led to 4 out of the last 5 days having minima below 12 Celsius (54F).  The lowest temperature was 12.3 Celsius (54F) on the 28th, the coolest day of the month.   

There were 3 notably mild nights during October. The 1st, with a low of 15.8 Celsius (60F), the 11th, with minimum of 15.3 Celsius (60F), and the 26th, when the temperature failed to fall below 15.4 Celsius (60F). There were no further minima above 13 Celsius (55F) and only 3 lows between 12 and 13 Celsius (54-55F). Of the 17 days with minima below 10 Celsius (50F), not surprisingly,  only 6 of these cooler nights  occurred before mid month.  On 5 of these colder nights the temperature dipped below 6 Celsius (43F), but only 2 had minima below 5 Celsius (41F). On the 3rd a minimum of 4.0 Celsius (39F) occurred, with 2.6 Celsius (37F) recorded on the 28th. 

The sea temperature steadily fell from 17 Celsius (63F) at the beginning of October to 13 or 14  Celsius (55-57F) by the end of the month.

Frost

There was no air frost during October and just 1 grass frost. On the 28th a grass minimum temperature of minus 1.1 Celsius (30F) occurred.    

Rain

There were  89.4  millimetres (3.5 ins.) of rain during October and that was about 70% above the monthly average. There were 23 days of measurable rain, and that was around 6 days above normal for October. Apart from on the 2nd, rain fell on each of the first 18 days of the month.  Much of the rain was fairly light during the first week, but it then became heavier, and on the 11th 7.6 millimetres (0.3 ins.)  were recorded, with 8.8 millimetres (0.35 ins.) falling on the following day. Heavy showers produced 16 millimetres (0.65 ins.) on the 17th with further showers giving 8.2 millimetres on 18th. From the 19th, the weather quietened down somewhat with only 6 further rain days during the remainder of the month. In this period, a total of 21.6 millimetres (0.8 ins.) fell, but it was largely because of 2 bouts of heavy rain. On the 24th 9 millimetres (0.35 ins.) fell, and on the 26th 8.2 millmetres (0.3 ins.) were measured. 

Hail

No hail was observed in Shoreham during October.

Thunder

Showers were accompanied by thunder on 3 days during October. On the 14th there was 1 rumble of thunder during the late afternoon.  Several rumbles of thunder were heard early in the evening of the 17th, and on the following day there was thunder early in the morning and late in the afternoon.

Snow

There was no sleet or snow observed in Shoreham during October.   

Wind

On a majority of days, the wind blew from between southwest and northwest and with the unsettled nature of the month it was often quite strong. At Shoreham Airport,  southwesterly winds gusted to 32 knots (37 mph) overnight on the 4th, followed  by a similar gust from a similar direction late on the afternoon of the 8th.  Southwesterly winds became strong on the afternoon of the 10th and stayed brisk until the evening of the 11th. The highest gusts were 32 knots (37 mph) on the 10th and 39 knots (45 mph) late on the morning of the 11th. Southwesterly winds gusted to 37 knots (42 mph) early on the afternoon of the 13th, with 35 knots (40 mph) and 39 knots (45 mph) measured during the evening and afternoon of the 17th and 18th respectively.  The strong winds continued into the early hours of the 19th when 34 knots (39 mph) were recorded.  The next bout of strong southwest winds commenced on the afternoon of the 25th and abated during the evening of the 26th. Gusts of 33 knots (38 mph) were measured late on the 25th, with 35 knots (40 mph) occurring  on the afternoon of the 26th. These were the last strong winds of the month.    

Fog

There was no fog observed in this part of Shoreham during October. 

Statistics for October 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 18.7 1.7 115 23 23
Thorney Island 18.7 2.5 106 15 23
Gatwick Airport 19.0 -1.7 150 19 25
Herstmonceux 18.1 2.3 140 20 24
Bournemouth (Hurn) 19.4 -1.5 135 18 23
Middle Wallop 18.5 0.7 135 18 21
Dieppe 21.2 4.7 156 27 20
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Weather in Shoreham – September 2019

Sunny and warm, then windy and wet 

Temperatures

The average maximum temperature during September 2019 in Shoreham was 19.9 Celsius (68F), and that was around 1.5 degrees Celsius (3F) above normal for the time of year. The average minimum temperature was 12.2 Celsius (54F), and that was very close to the September normal.    

The highest temperature recorded during the month was 23.3 Celsius (74F) on the 21st, but there were 13 other days when the temperature rose above 20 Celsius (68F), including 9 of the 11 days between the 10th and 20th. There were no particularly cool days during September, but maximum temperatures were below 20 Celsius (68F) from 5th to 9th inclusive, and from the 22nd until the end of the month. However, only 2 days had highs below 18 Celsius (64F). The 29th had a maximum of 17.8 Celsius (64F), but the coolest day of the month was the 9th when the temperature peaked at 16.3 Celsius (61F). 

There were a few fairly warm nights during September, these mainly occurring at either end of the month. On 2 occasions during the first week, and on 3 occasions during the last 9 days of September, the temperature stayed above 15 Celsius (59F), but only 1 of these days had a minimum above 17 Celsius (63F). That was on the 22nd when a low of 18.4 Celsius (65F) was recorded. There were several rather cool nights during the month, and temperatures dipped below 10 Celsius (50F) on 9 nights. However, there were only 2 of these cooler nights with minima below 8 Celsius (46F). On the 6th 7.3 Celsius  (45F) was measured, with 7.2 Celsius (45F) occurring on the 8th. 

The sea temperature was 19 or 20 Celsius (66-68F) at the beginning of September, but slowly fell to 17 Celsius (63F) by the end of the month.

Frost

There were neither air nor grass frosts during  September.  The lowest grass minimum temperature was 3.3 Celsius (38F) recorded on the 6th.    

Rain

There were  51.4  millimetres (2 ins.) of rain during September and that was very close to the monthly average. There were 15 days of measurable rain, and that was about 3 days above normal for September. Although the first 3 weeks of September were unsettled at times,  particularly during the second week, it was often sunny, especially during the afternoons, and more generally through the third week. Rain fell on just 7 days between the 1st and 22nd inclusive and the total for this period was a meagre 8.6 millimetres (0.3 ins.). The highest daily total was 4.6 millimetres (0.2 ins.) on the 3rd, with no rain measured between the 13th and 20th inclusive.  The end of the month became very unsettled with rain recorded on  each of the last 10 days of September.  Although much of the rain was light and drizzly,   some heavy bursts occurred, and on the 23rd a total of 16.2 millimetres (0.6 ins.) was measured. A further 6.2 millimetres (0.2 ins.) fell on the 24th, with over 10 millimetres (0.4 ins.) recorded on the 28th. 

Hail

No hail was observed in Shoreham during September.

Thunder

There was no thunder heard during September.

Snow

There was no sleet or snow observed in Shoreham during September.   

Wind

Although September was a westerly month, pressure was relatively high during the first 3 weeks, and winds were mainly gentle or moderate, although some brisk afternoon sea breezes occurred. During the third week, breezes were generally from the east or northeast, but thereafter the pressure fell, and the weather became increasingly cyclonic, with mainly southwesterly winds becoming fresh or strong at times. At Shoreham Airport,  southwesterly winds gusted to 32 knots (37 mph) on the afternoon of the 11th, but the next brisk winds were not until the 23rd when 30 knot (34 mph) southerly gusts were recorded in the evening. The 24th was a breezy day with southwesterly gusts peaking at 31 knots (35 mph) in the late afternoon.  The breezy weather persisted with 33 knots (38 mph) occurring during the afternoon of the 25th. Gusts of 30 knots (34 mph) were measured on the 26th, and the 27th was windier with 38 knots (43 mph) from the southwest during the afternoon.  There was no let up as southwesterly gusts exceeded 30 knots (34 mph) on the 28th, with 40 knots (46 mph) occurring early on the 29th. This was the highest gust of the month and the 30th was much calmer.    

Fog

There was no fog observed in this part of Shoreham during September. 

Statistics for September 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 22.3 4.2 61 20 13
Thorney Island 22.0 5.0 96 32 14
Gatwick Airport 25.4 4.2 92 27 15
Herstmonceux 24.1 5.6 95 25 14
Bournemouth (Hurn) 24.5 3.4 110 23 13
Middle Wallop 24.1 3.8 104 36 16
Dieppe 27.9 6.3 43 10 18
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Weather in Shoreham – August 2019

Dry and Rather Warm 

Temperatures

The average maximum temperature during August 2019 in Shoreham was 22.2 Celsius (72F), and that was around 2 degrees Celsius (3.5F) above normal for the time of year. The average minimum temperature was 14.3 Celsius (58F), and that was very close to the August normal.    

The highest temperature recorded during the month was 28.2 Celsius (83F) on the 24th, but there were 3 other days when the temperature rose above 25 Celsius (77F), with all these very warm days occurring between the 24th and 27th. On most days maxima were between 20 and 25 Celsius, but there were a few cooler days. On 5 occasions the temperature failed to rise above 20 Celsius (68F). All of these cooler days occurred between the 10th and 18th, but the only day with a maximum below 18 Celsius (64F) was the 14th with a high of 17.6 Celsius  (64F). 

There were a few warm nights during August, and on the 9th the temperature only fell to 19.2. Celsius (67F). There were 2 other nights when the temperature stayed above 17 Celsius (63F), including the 28th when the minimum temperature was 17.8 Celsius (64F). The coolest nights tended to occur in the second half of the month, and of the 11 nights with minima below 13 Celsius (55F), only 3 occurred before mid month. Only 2 nights had lows under 10 Celsius (50F). The 13th had a minimum of 9.9 Celsius (50F), with  the 21st dipping to 9.6 Celsius (49F). 

The sea temperature was 19 or 20 Celsius (66-68F) throughout the month.

Frost

There were neither air nor grass frosts during  August.  The lowest grass minimum temperature was 6.1 Celsius (43F) recorded on both the 13th and 20th.    

Rain

There were  28.2  millimetres (1.1 ins.) of rain during August and that was around 40% below the monthly average. There were 15 days of measurable rain, and that was about 3 days above normal for August. The first 2 days of August were dry, but the weather then turned changeable, although by the 10th only just over 5 millimetres (0.2 ins.) of rain had fallen. The total for the day on the 11th was 5.6 millimetres (0.2 ins.) with another 4 millimetres (0.15 ins.) on the 12th. Rain fell for much of the day on the 16th, and the total of 6 millimetres (0.25 ins.) made it the wettest day of the month. After the 16th rain was light and patchy with no daily total exceeding 0.6 millimetres (0.03 ins.). In fact the total between the 20th and the end of the month was less than 1 millimetre (0.04 ins.).

Hail

No hail was observed in Shoreham during August.

Thunder

There was only 1 day with thunder occurring during August, and that was late afternoon on the 12th when 4 rumbles were heard during a 6-minute period.

Snow

There was no sleet or snow observed in Shoreham during August.   

Wind

August was very much a southwesterly month with winds from that direction dominating on 22 days. Although winds were often light in the mornings, during afternoons sea breezes were often fresh and occasionally strong. At Shoreham Airport,  southwesterly winds gusted to 31 knots (35 mph) on the afternoon of the 7th, but on the 10th winds gusted above 40 knots (46 mph) through much of the night, morning and afternoon, peaking at 47 knots (54 mph) early in the afternoon. The wind was strong enough to break branches of several trees around the town. The wind remained blustery and 31 knots (35 mph) was recorded on the afternoon of the 11th, with a similar velocity occurring on the afternoon of the 14th. On the evening of the 16th, a gust of 36 knots (41 mph) was measured, and then 33 knots (38 mph) occurred on the afternoon of the 18th.  The following afternoon had 32 knots (37 mph), but that was the final breezy afternoon of the month.    

Fog

There was no fog observed in this part of Shoreham during August. 

Statistics for August 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 25.9 7.6 32 9 12
Thorney Island 29.2 8.4 38 8 12
Gatwick Airport 32.2 6.0 55 13 14
Herstmonceux 30.9 7.9 49 11 14
Bournemouth (Hurn) 27.6 6.2 43 16 14
Middle Wallop 30.5 7.3 52 11 13
Dieppe 29.3 8.8 42 14 18
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Weather in Shoreham – July 2019

Warm, but some Thundery Downpours 

Temperatures

The average maximum temperature during July 2019 in Shoreham was 23.5 Celsius (74F), and that was over 3 degrees Celsius (5F) above normal for the time of year. The average minimum temperature was 14.6 Celsius (59F), and that was less than 1 Celsius (1F)  above the July normal.    

The highest temperature recorded during the month was 33.3 Celsius (92F) on the 23rd, but the 25th was almost as hot with 33.0 Celsius (91F). These were some of the highest temperatures known to have been recorded in the area and comparable with the high temperatures observed in the Summer of 1976, and the August heatwave of 1990. There were no other days when temperatures exceeded 30 celsius (86F), but there were 4 other days when the temperature rose above 25 Celsius (77F). The warmest of these days was the  24th with a reading of 26.5 Celsius (80F). On most days (23), maximum temperatures were between 20 and 25 Celsius (68-77F), but there were 2 rather cool days. On the 7th, the temperature struggled to reach 19.0 Celsius (66F), but the 19th was cooler with a high of 18.9 Celsius (66F).

There were a few warm nights during July, especially during the second half of the month.  The warmest night was the 24th with a minimum of 19.0 Celsius (66F), but a low of 18.8 Celsius (66F) occurred on the 26th, and 18.2 Celsius (65F) was noted on the 30th. There were 11 other nights with minima higher than 15 Celsius (59F). There were no particularly cool nights, although minimum temperatures were below 13 Celsius (55F) on 10 nights. This included 5 nights with minima below 12 Celsius (54F). The lowest temperature was 11.2 Celsius (52F), this occurring on 3 nights, the 15th, 17th and 19th. 

The sea temperature gradually rose from 18 Celsius (64F) at the beginning of June to 19 or 20 Celsius (66-68F) by the end of the month.

Frost

There were neither air nor grass frosts during  July.  The lowest grass minimum temperature was 7.8 Celsius (46F) recorded on both the 15th and 19th.    

Rain

There were  47.0  millimetres (1.85 ins.) of rain during July and that was close to the monthly average. There were 9 days of measurable rain, and that was about 3 days below normal for July. The first half of the month was very dry, with the 6th the only day with measurable rainfall between the 1st and 16th, and even then, just 1.8 millimetres (0.07 ins.) were recorded. Thereafter, the month was somewhat more unsettled. The 17th and 18th each produced less than 1 millimetre (0.04 ins.) of rain, but on the 19th there were 32.2 millimetres  (1.27 ins.) making it the wettest July day for 12 years.  Dry weather followed for 3 days, but changeable weather towards the end of the month led to 5 out of the last 9 days recording measurable rain. The wettest day was the 26th with 5.8 millimetres (0.2 ins.), with each of the other 4 days having less than 3 millimetres (0.1 ins.).

Hail

No hail was observed in Shoreham during July.

Thunder

There were 4 days with thunder during July. The first thunder was in association with the heavy rain late on the evening of the 19th. Thunderstorms late on the evening of the 23rd rumbled on into the early hours of the 24th, with frequent lightning, especially to the south, although thunder was generally distant. Thunder and lightning occurred intermittently overnight on the 26th.

Snow

There was no sleet or snow observed in Shoreham during July.   

Wind

Southwesterly winds were dominant during July, although winds blew from other directions too., with east or southeasterly breezes associated with some of the warmer days. Generally winds were quite light, although moderate or fresh sea breezes occurred on several afternoons. The main exception to the light winds occurred late on the 29th and 30th , when southwesterly winds were strong enough to break branches off trees and substantially reduce the yield from fruit trees. At Shoreham Airport southwesterly gusts touched 30 knots (34 mph) on the afternoon of the 20th, but on the 30th southwest winds gusted to 41 knots (47 mph) in the afternoon, with 32 knots, (36 mph), from the same direction, on the 31st.     

Fog

There was no fog observed in this part of Shoreham during July. 

Statistics for July 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 31.1 8.8 55 38 9
Thorney Island 30.5 8.9 44 26 9
Gatwick Airport 34.9 7.2 54 21 10
Herstmonceux 35.0 9.0 90 50 8
Bournemouth (Hurn) 31.7 7.2 35 12 5
Middle Wallop 33.4 8.3 37 16 9
Dieppe 40.1 9.3 31 10 7
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Weather in Shoreham – June 2019

Rather warm and Wet 

Temperatures

The average maximum temperature during June 2019 in Shoreham was 20.4 Celsius (68F), and that was over 2 degrees Celsius (3.5F) above normal for the time of year. The average minimum temperature was 12.4 Celsius (54F), and that was  very close to the June normal.    

The highest temperature recorded during the month was 30.3 Celsius (86F) on the 29th, but there were 2 other days when the temperature rose above 25 Celsius (77F). On the 25th a high of 26.6 Celsius (80F) occurred, with 26.8 Celsius (81F) recorded on the 28th. There were a further 10 days with maxima above 20 Celsius (68F), but only 2 of these warmer days occurred before mid month. by way of contrast, there were 10 consecutive days exceeding 20 Celsius (68F) between the 21st and the end of the month. There were very few cool days during June.  In fact, only 4 days had maxima below 17 Celsius (63F). All of these cooler days occurred between the 8th and 13th. Only 1 day had a high below 15 Celsius (59F), and that was on the 10th when a maximum of 12.3 Celsius (54F) occurred. This appears to be the coolest June day in the area for 23 years.

There were a few warm nights during June, especially during the last week of the month.  The warmest night was the 24th with a minimum of 18.6 Celsius (66F). This was a particularly interesting night. At 2100 hours on the 23rd the temperature was 20.8 Celsius (69F). The temperature then slowly rose, peaking at 22.3 Celsius (72F) at 2300 hours. After a brief dip to 20.4 Celsius (68F) after midnight, another rise occurred with a maximum of 21.8 Celsius (71F) at 0240 hours.  The temperature stayed above 21 Celsius (70F) until 0410,  but the east to northeasterly ‘foehn’ breeze that had helped to sustain the high values slowly abated and was eventually displaced by a light southwest wind blowing from a cooler source.  There were 3 other nights with minima above 15 Celsius (59F) with the first of these occurring on the second night of the month. Generally, the nights were cooler during the first half of June,  but the 4 coolest nights, each with minimum temperatures below 10 Celsius (50F), were divided evenly between the 2 halves of June. The coolest night was the 9th with 8.4 Celsius (47F), followed by the 22nd with 8.8 Celsius (48F). 

The sea temperature gradually rose from 15 Celsius (59F) at the beginning of June to 18 Celsius (64F) by the end of the month.

Frost

There were no air nor grass frosts during  June.  The lowest grass minimum temperature was 3.9 Celsius (39F) on the 9th.    

Rain

There were  55.4  millimetres (2.2 ins.) of rain during June and that was  around 20% above the monthly average. There were 14 days  of measurable rain, and that was about 2 days above normal for June. The first day of the month was dry and rain on the 2nd was negligible. However, rain fell for much of the day on the 4th and amounted to 6 millimetres (0.2 ins.). Although the 5th and 8th were largely dry, the changeable weather continued, with 8.6 millimetres (0.3 ins.) falling on the 7th, followed by a thoroughly cool and wet day on  the 10th when 12.4 (0.5 ins.) were measured, the wettest day of the month.  The unsettled weather continued,  but rainfall totals were lower, and between the 13th and 23rd only 5 millimetres (0.2 ins.) of rain fell. Rain, heavy at times, occurred on the evening of the 24th, lasting into the early hours of the 25th. A total of 10 millimetres (0.4 ins.) were measured, but this proved to be the last significant rain  of the month.

Hail

No hail was observed in Shoreham during June.

Thunder

There were thunderstorms  around,  and just before, mid morning on the 18th, with further storms in the evening. The late storms produced much lightning to the east and southeast  but  very little thunder and only light rain.

Snow

There was no sleet or snow observed in Shoreham during June.   

Wind

Southwesterly winds blew slightly less often than during an average June,  nevertheless, they were dominant on around half the days. There were a few days with east or northeasterly winds,  these mainly occurring on the warmer days towards the end of the month. Apart from on  the 8th, a notably breezy day, winds were mainly light or moderate, although on a few days there were some brisk afternoon sea breezes. At Shoreham Airport, gusts exceeded 30 knots (34 mph) during much of the 8th,  and reached 39 knots (45 mph) around dawn and again early in the afternoon. Southwesterly gusts of 31 knots (35 mph) occurred in the afternoon and early evening of the 13th. These were the last noteworthy gusts of the month.     

Fog

There was no fog observed in this part of Shoreham during June. 

Statistics for june 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 28.1 5.2 65 17 15
Thorney Island 28.3 7.4 66 22 12
Gatwick Airport 33.1 5.3 86 17 15
Herstmonceux 31.4 7.1 130 47 12
Bournemouth (Hurn) 27.8 3.6 75 21 15
Middle Wallop 30.8 6.6 72 25 14
Dieppe 35.4 8.1 40 14 9
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Weather in Shoreham – May 2019

Dry and Rather Warm 

Temperatures

The average maximum temperature during May 2019 in Shoreham was 17.3 Celsius (63F), and that was around 2 degrees Celsius (3.5F) above normal for the time of year. The average minimum temperature was 8.2 Celsius (47F), and that was  around  1  degree Celsius (1.5F) below the May normal.    

The highest temperature recorded during the month was 21.8 Celsius (71F) on the 24th, but both the 21st and 25th had maxima above 20 Celsius (68F). There were a further 13 days with highs between 18 and 20 Celsius (64-68F), although only 2 of these warmer days occurred during the first half of the month. There were no particularly cold days during May, but on 5 occasions the temperature failed to rise above 15 Celsius (59F). One of these cooler days occurred as late as the 29th, and on the 17th the temperature only reached 12.8 Celsius (55F). However, there were 3 consecutive cool days beginning on the 4th, and in fact the 4th was the coolest day of the month with a high of 12.2 Celsius (54F).

There were no particularly warm nights during  May, but on 8 occasions, all during the second half of the month,  the temperature stayed above 10 Celsius (50F). On 3 of these nights the temperature stayed above 12 Celsius (54F). On the 25th, a minimum of 14.2 Celsius (58F) was recorded, with 13.6 Celsius (57F) and 13.7 Celsius (57F) measured on the 30th and 31st respectively. All the coldest nights of the month occurred during the early part of May with no minima below 7 Celsius (45F) after the 16th. Prior to that date, there were 13 nights with temperatures dipping below 7 Celsius (45F), including 6 nights with temperatures below 5 Celsius (41F). All these chilly nights occurred between the 4th and 13th, but there were only 2 occasions when the temperature fell below 4 Celsius (39F). On the 4th a low of 3.8 Celsius (39F) was measured, but on the following night the minimum was 2.1 Celsius (36F). 

The sea temperature gradually rose from 12 Celsius (54F) at the beginning of May to 15 Celsius (59F) by the end of the month.

Frost

There were no air frosts during  May and just 1 grass frost. on the night of the 4th/5th the grass temperature fell to minus 1.1 Celsius (30F).    

Rain

There were  19.4  millimetres (0.75 ins.) of rain during May and that was only around 40% of the monthly average. It was the driest May in the area for 8 years. There were 8 days  of measurable rain, and that was about 4 days below normal for May. The first day of the month was dry and rain on the 2nd was negligible. However, heavy showers on the evening of the 3rd gave over 4 millimetres (0.17 ins.) of rain, and further showers occurred on the 4th.  Heavy rain fell early on the 8th, although the 8.8 millimetres (0.35 ins.) that fell was logged for the 7th (rainfall day 0900-0900 UTC). Showers fell on both the 8th  and 11th but less than 1 millimetre (0.04 ins.) was recorded on each day. From the 12th, there were 14 consecutive dry days, and although this was followed by 4 damp days, amounts of rain were small with 2.4 millimetres (0.1 ins.) on the 29th the highest total. The last 2 days of the month were dry.

Hail

No hail was observed in Shoreham during May.

Thunder

No thunder was heard in Shoreham during May.

Snow

There was no sleet or snow observed in Shoreham during May.   

Wind

On balance, May was a ‘westerly’ month,  although almost a week of northeasterlies occurred around mid month, and the prevailing soputhwesterlies were matched in number (10) by winds from a northwesterly direction.  Winds were quite brisk during the first 9 days of the month, and again during the last week of May. However, overall winds were generally lighter than average. At Shoreham Airport  northwesterly gusts of 31 knots (35 mph) occurred on the afternoon of the 4th, and again on the morning of the 8th, but this time from a southwesterly direction. There were no further gusts above 30 knots (34 mph) during the remainder of the month.     

Fog

There was no fog observed in this part of Shoreham during May, 

Statistics for May 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 20.4 1.1 25 12 8
Thorney Island 21.0 2.4 20 10 12
Gatwick Airport 23.1 0.2 39 16 12
Herstmonceux 21.5 2.5 31 16 12
Bournemouth (Hurn) 22.4 -1.6 38 15 11
Middle Wallop 22.6 0.2 25 15 10
Dieppe 23.2 3.2 21 9 10
 
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Weather in Shoreham – April 2019

Very Mild and  Dry

Temperatures

The average maximum temperature during April 2019 in Shoreham was 15.2 Celsius (59F), and that was around 3 degree Celsius (5F) above normal for the time of year. The average minimum temperature was 6.7 Celsius (44F), and that was  under  1  degree Celsius (1.5F) above the March normal.    

The highest temperature recorded during the month was 25.2 Celsius (77F) on the 20th, and that appears to be one of the warmest April days in Shoreham for more than 50 years. Remarkably, there were 5 other days when the temperature rose above 20 Celsius (68F), including  highs of 24.3 Celsius (76F) on both the 19th and 21st. All these 6 very warm days were clustered between the 18th and 23rd. On most other days during the second half of the month, maximum temperatures were close to 15 Celsius (59F), but the first half of April was generally much cooler. There were 12 days when the temperature failed to rise above 14 Celsius (57F), with all of these cooler days occurring before mid month. On 6 days, maxima were below 11 Celsius (52F), and this included 2 days, the 2nd and 3rd, with highs below 10 Celsius (50F). The coolest day was the 3rd with a top temperature of 9.2 Celsius (49F).

There were no particularly mild nights during April, but on 6 occasions, all between the 18th and 24th, the temperature remained above 10 Celsius (50F). The mildest night was the 23rd with a minimum of 11.0 Celsius (52F), but the 20th was not far behind with 10.9 Celsius (52F). The coolest nights were also in the first half of the month, and the 7 nights with minima below 5 Celsius (41F)  all occurred before the 16th. Only 3 nights had temperatures below 3 Celsius (36F). On the 11th a low of 0.8 Celsius (33F) was recorded. On the 3rd it dipped to 0.6 Celsius (33F), but the coldest night of the month was the 14th with 0.2 Celsius (32F). 

The sea temperature gradually rose from 10 Celsius (50F) at the beginning of April to 12 Celsius (54F) by the end of the month.

Frost

There were no air frosts during  April but 7 grass frosts occurred.  Only 1 grass frost occurred after mid month, the 30th, when a grass temperature of minus 0.6 Celsius (31F) was recorded. Most grass frosts were slight, with only 2 nights recording grass minimum temperatures below minus 2 Celsius (28F). On the 14th, minus 2.2 Celsius (28F) was measured, and on the 3rd a grass low of minus 3.3 Celsius (26F) occurred.    

Rain

There were  16.6  millimetres (0.65 ins.) of rain during April and that was only around a third of the monthly average. There were 9 days  of measurable rain, and that was about 3 days below normal for April. After a dry, almost cloudless, day on the 1st, the weather turned cool and showery. On the 2nd 6 millimetres (0.24 ins.) of rain fell, with another 3.8 millimetres (0.15 ins.) on  the 3rd. Rain  and drizzle gave 3 millimetres (0.1 in.)  on the 9th, otherwise, between the 4th and 22nd only 0.4 millimetres (0.02 ins.) of rain fell. The end of the month became unsettled again, but of the 4 ‘rain days’ between the 23rd and 26th, the 24th was the wettest with just 1.8 millimetres (0.07 ins.) and no measurable rain fell after the 26th.

Hail

There was small hail observed late in  the afternoon on the 2nd, and larger soft hail occurred around lunchtime and in the evening on the 3rd.

Thunder

There was thunder mid afternoon on the 2nd.

Snow

There was no sleet or snow observed in Shoreham during April.   

Wind

April was a ‘northeasterly’ month with winds from that direction outnumbering the usual southwesterlies by a ration of 3 to 1. The bulk of the northeasterlies occurred during the second and third weeks,  although there was no prolonged run of southwesterlies at any time during the month. Although the northeast breezes were quite brisk at times, overall it was a less windy April than usual. There was one particularly windy day, however, and that was the 27th when westerly winds were strong for most of the day. At Shoreham Airport,  southerly gusts reached 32 knots (37 mph) on the afternoon of the 4th, but the next period of breezy weather didn’t occur until late on the 26th. A gust of 34 knots (41 mph) from the southwest occurred late in evening, followed by 41 knots (47 mph) in the early hours of the 27th.     

Fog

There was no fog observed in this part of Shoreham during April, 

Statistics for April 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 24.0 -1.3 18 7 9
Thorney Island 24.0 -1.3 16 3 8
Gatwick Airport 24.8 -3.0 14 5 10
Herstmonceux 23.8 -0.5 15 4 11
Bournemouth (Hurn) 25.0 -4.0 55 22 11
Middle Wallop 24.1 -2.0 42 21 10
Dieppe 23.7 -1.2 33 10 11
 
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Weather in Shoreham -March 2019

Very Mild and Wet, then Dry

Temperatures

The average maximum temperature during March 2019 in Shoreham was 12.5 Celsius (55F), and that was almost 3 degree Celsius (5F) above normal for the time of year. The average minimum temperature was 6.1 Celsius (43F), and that was  close to 1.5  degree Celsius (2.5F) above the March normal. Overall. it appears to have been the mildest March in the area for at least 50 years.   

The highest temperature recorded during the month was 17.4 Celsius (63F) on the 30th, and there were 3 other days with the temperature rising above 15 Celsius (59F). The month was persistently mild with only 6 days having maxima below 11 Celsius (52F) and just 1 of these days had a high below 10 Celsius (50F). That day was the 12th when 9.8 Celsius (50F) was recorded.

There were no particularly mild nights during March, but the temperature on the 3rd only fell to 10.1 Celsius (50F) and there were a further 4 nights when the temperature stayed above 9 Celsius (48F). The mildest nights generally occurred during the first half of March with  only 4 of the 12 nights with minima below 5 Celsius (41F) occurring before mid month. However, the 4 coldest nights, with minima below 3 Celsius (37F),  were equally divided into the 2 halves of March.  The lowest temperatures were 1.9 Celsius (36F) on the 5th and 1.4 Celsius (34F) on the 26th. 

The sea temperature slowly rose from 8 Celsius (46F) at the beginning of March to 10 Celsius (50F) by the end of the month.

Frost

There were no air frosts during  March but 8 grass frosts occurred.  Only 2 grass frosts occurred before mid month, but 3 consecutive grass frosts were recorded between the 24th and 26th. The frosts were slight with only 4 nights having ground temperatures below minus 2 Celsius (28F).  The lowest value was minus 2.8 Celsius (27F) occurring on both the 5th and 26th.    

Rain

There were  44.0  millimetres (1.7 ins.) of rain during March and that was very close to the monthly average. There were 15 days of measurable rain, and that was around 1 day above normal for March. There were no completely dry days between the 1st and 19th, although only a trace of rain was measured on the 11th, 14th, 17th and 19th.  The heaviest rain occurred early in the month with 6.2 millimetres (0.25 ins.) recorded on the 2nd, and a further 7.2 millimetres (0.3 ins.) fell on the 3rd. Over 4 millimetres (0.2 ins.) occurred on the 5th but then rainfall became more sporadic. On the 9th there were 7.0 millimetres (0.3 ins.) of rain with 6.2 millimetres (0.25 ins.) on the 12th. The last measurable rain of the month was on the 18th when 4.4 millimetres (0.17 ins.) fell.

Hail

There was no hail observed in this part of Shoreham during  March.

Thunder

There was thunder and lightning to the southeast at ten minutes past midnight on the 4th.

Snow

There was no sleet or snow obsereved in Shoreham during March.   

Wind

Pressure was higher than normal again during March, but the first half of the month was often windy. On most days the wind was predominantly from the southwest, with only a few breezes from a northeast or southeasterly quadrant. At Shoreham Airport southwesterly gusts exceeded 30 knots (34 mph) for much of the day on the 3rd, peaking at 38 knots (43 mph) in the early evening.  Late on the afternoon of the 4th, west to northwesterly gusts peaked at 41 knots (47 mph). The 7th was windy all day and southwesterly gusts reached 39 knots (44 mph) in the afternoon. The following day was windy in the evening with a gust of 36 knots (41 mph) recorded just before midnight. risk westerly winds gave a gust of 34 knots (39 mph) on the afternoon of the 9th, but then the 10th was very windy with 52 knots (59 mph)  from the west measured late in the morning.  The 12th was windy again with 42 knots (48 mph)  from the southwest early in the afternoon.  The 13th and 14th stayed windy with 42 knots (48 mph) occurring again on the morning of the 14th. There was no let up on the 15th and 16th with regular gusts above 30 knots (34 mph) and a gust of 44 knots (50 mph) on the evening of the 16th. This brought an end to the windy weather and there were no further gust above 30 knots (34 mph) during the remainder of the month.     

Fog

There was no fog observed in this part of Shoreham during March.

Statistics for March 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 16.3 -0.9 40 7 15
Thorney Island 15.7 -0.5 60 16 16
Gatwick Airport 19.2 -2.3 80 17 16
Herstmonceux 17.8 -0.1 67 12 16
Bournemouth (Hurn) 17.9 -2.6 79 15 18
Middle Wallop 18.2 0.5 73 16 18
Dieppe 17.4 0.4 61 16 15
 
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Weather in Shoreham- February 2019

Mild and Dry

Temperatures

The average maximum temperature during February 2019 in Shoreham was 9.9 Celsius (50F), and that was around 2.5 degree Celsius (4.5F) above normal for the time of year. The average minimum temperature was 4.0 Celsius (39F), and that was  close to 1  degree Celsius (2F) above the February normal. It was the mildest February for 5 years.   

The highest temperature recorded during the month was 15.2 Celsius (59F) on the 26th, with the 25th only 0.1 Celsius (0.2F) less mild. Although much lower than the record-breaking temperatures that occurred in the London area, they were, nevertheless, exceptional for the south coast, and probably haven’t occurred in the area for at least 50 years. The temperature also rose above 12 Celsius (54F) on both the 24th and 27th. There were a further 9 days when the temperature exceeded 10 Celsius (50F),  but with only 4 of these milder days occurring before mid month. During the period between the 6th and the end of the month, only the 10th, with a high of 8.3 Celsius (47F), had a maximum temperature below 9 Celsius (48F). The first 5 days of February, however, were somewhat colder. The 3rd had a high of 6.6 Celsius (44F), but the 1st and 2nd had highs of 4.1 Celsius (39F) and 4.8 Celsius (41F) respectively.

There were no particularly mild nights during February, but on 5 occasions the temperature stayed above 7 Celsius (45F), including 4 consecutive nights commencing on the 6th. On many nights (14) the temperature fell to between 1 and 5 Celsius (34-41F), with only 3 nights having minima below 1 Celsius (34F). The coldest night was the 2nd/3rd with a minimum temperature of minus 2.7 Celsius (27F). 

The sea temperature was 7 Celsius (45F) at the beginning of February, but for most of the month it was close to 8 Celsius (46F).

Frost

There was just 1 air frost during February, and that’s 5 below average. However, there were 16 grass frosts. with the average grass temperature of minus 0.1 Celsius (32F). There was grass frost on the first 3 nights of the month, and on the 3rd a grass minimum of minus 7.8 Celsius (18F) occurred. A frost-free week followed before grass frosts returned on the 11th. A week of grass frosts included minima of minus 3.9 Celsius (25F) on both the 14th and 15th. The 18th was frost-free but the 19th also had a low of minus 3.9 Celsius (25F). A short spell without frost ended on the 24th and the last 5 nights of the month had grass frosts, with the 25th having a grass low of minus 5 Celsius (23F).   

Rain

There were  46.8  millimetres (1.8 ins.) of rain during February and that was only just over half the monthly average. There were 18 days of measurable rain, and that was around 2 days above normal for February. Apart from the 2nd, rainfall was measured on each of the first 10 days of February. Totals included 7 millimetres (0.3 ins.) on the 3rd, almost 5 millimetres (0.2 ins.) on both the 4th and 5th, 6 millimetres (0.25 ins.) on the 6th, and 9 millimetres (0.35 ins.) on the 9th, the wettest day of the month. No rain fell between the 11th and 16th, however, the nights were very moist and unusually, a combination of frost and dew produced a total ‘rainfall’ of 1.2 millimetres (0.05 ins.). Only 5 more days of measurable rain occurred after the 16th, and the total was a mere 5.8 millimetres (0.25 ins.) with 4.4 millimetres (0.17 ins.) attributable to the last day of the month.

Hail

There was no hail observed in this part of Shoreham during  February.

Thunder

There was no thunder heard in this part of Shoreham during February.

Snow

There were 2 days with snow or sleet falling  in Shoreham during February. There was snow in  the early hours of the 1st and by morning there were 2 centimetres (1 in.) of lying snow. This thawed during the day, but rain turned to sleet during the evening and lasted until the early hours of the 2nd.   

Wind

Pressure was higher than normal during February, but anticyclones were either over, or to the southeast of,  the country, and that resulted in winds either light and variable in direction, or blowing from the southwest . The strongest winds mainly occurred during the first half of the month, and at Shoreham Airport gusts reached 34 knots (38 mph) early on the 4th, with 42 knots (48 mph) occurring early on the 7th.  On the 8th, gusts of 40 to 45 knots (46-51 mph) were observed in the afternoon and early evening, with 41 knots (47 mph) occurring on the following morning.  There was a gust of 37 knots (42 mph) late on the afternoon of the 10th., and this proved to be the last significant gust of the month.     

Fog

There was fog observed on the mornings of both the 6th and 22nd.

Statistics for February 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 15.8 -3.1 53 14 12
Thorney Island 15.8 -3.3 59 13 17
Gatwick Airport 19.6 -4.5 59 22 15
Herstmonceux 18.3 -4.0 75 15 20
Bournemouth (Hurn) 17.8 -7.2 58 14 17
Middle Wallop 18.1 -6.2 70 18 18
Dieppe 17.8 0.4 32 8 13
 
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Weather in Shoreham – January 2019

Dry and Rather Cold

Temperatures

The average maximum temperature during January 2019 in Shoreham was 7.3 Celsius (45F), and that was around 0.5 degree Celsius (1F) below normal for the time of year. The average minimum temperature was 2.0 Celsius (36F), and that was  more than 1  degree Celsius (2F) below the January normal.   

The highest temperature recorded during the month was 12.4 Celsius (54F) on the 13th, and there were only 3 other days when the temperature rose above 10 Celsius (50F).  The 1st had a high of 11.6 Celsius (53F), it reached 10.7 Celsius (51F) on the 7th, and a maximum of 11.3 Celsius (52F) was recorded on the 25th. There were a further 7 days with maxima between 9 and 10 Celsius (48-50F), but on many days (18) the top temperature was between 4 and 8 Celsius (39-46F). These included 5  days with maxima between 4 and 5 Celsius (39-41F). However, there was only 1 day when the temperature failed to reach 4 Celsius (39F). On the 23rd the temperature only reached 3.0 Celsius (37F), the coldest day of the month.

There were very few mild nights during January.  In fact, only 3 had minimum temperatures above 6 Celsius (43F). The 13th had a low of 8.9 Celsius (48F) , with 7.8 Celsius (46F) recorded on the 16th and 6.3 Celsius (43F)  measured on the 26th. On several nights (8), especially early in the month, minimum temperatures were between 4 and 6 Celsius (39-43F), but towards the end of January nights were generally colder. On the 21st, a low of minus 3 Celsius (27F) occurred, with minus 3.3 Celsius (26F) on the 24th. However, the last night of the month (30th/31st) was the coldest. The temperature fell to minus 5.4 Celsius (22F), the lowest January temperature in the area for 9 years. 

The sea temperature slowly decreased from 9 Celsius (48F) at the beginning of the month to nearer  7 Celsius (45F) by the end of January.

Frost

There were 6 air frosts during January, about average for the time of year. The first air frost of the ‘Winter’ occurred on the 18th. It was slight, though, with a minimum temperature of minus 1.1 Celsius (30F). Further air frost occurred on both the 21st and 24th, with the last nights of the month accounting for the remaining 3 air frosts. Remarkably, there were 20 grass frosts, with a fairly even distribution through the month. Although 9 grass frosts occurred before mid month, only 2 had minimum temperatures below minus 3 Celsius (27F). On the 15th, the low was minus 5 Celsius (23F). After mid month, there were 11 grass frosts with only 2 having minima above minus 3 Celsius (27F)! On 5 occasions grass minima were below minus 5 Celsius (23F), with minus 7.8 Celsius (18F) recorded on both the 21st and 24th, with minus 8.3 Celsius (17F) measured on the morning of the 31st.   

Rain

There were 35.6  millimetres (1.4 ins.) of rain during January and that was less than half the monthly average. There were 12 days of measurable rain, and that was around 5 days below  normal for January. No measurable rain fell during the first 14 days of January, and although only 0.6 millimetres (0.02 ins.) was logged on the 15th, it brought to an end a dry spell that had lasted 22 days, a very unusual occurrence during winter months. During the remainder of January there only 3 more completely dry days. However, only 7 of the 12 ‘rain days’ had falls above 1 millimetre (0.04 ins.), with only 2 of these having totals above 5 millimetres (0.2 ins.)  On the 21st, a fall of 5.2 millimetres (0.2 ins.) occurred, but by far the wettest day of the month was the 29th with a total for the day of 14.0 millimetres (0.55 ins.).

Hail

There was no hail observed in this part of Shoreham during January.

Thunder

There was no thunder heard in this part of Shoreham during January.

Snow

There were 2 days with snow or sleet falling  in Shoreham during January. On the 29th heavy rain turned to sleet and wet snow for a while in the evening. However, settling was limited to a few slushy patches. On the 31st, snow, moderate at times, fell during the evening, and although there was a high water content, it managed to deposit 3 centimetres on the ground by the turn of the month.   

Wind

It was a very unusual month in that northwesterly winds were dominant on 18 days, and the prevailing southwest wind was pushed aside on all bar 4 days.  As a consequence, winds were generally lighter than in a normal January. Even so, there were some breezy days, and at Shoreham  Airport, gusts from the west-northwest reached 32 knots (36 mph) on the afternoon of the 13th,  and 33 knots (38 mph) from the southwest in the early hours of the 22nd.  On the evening of the 26th, winds were again blowing from the southwest and a gust of 35 knots (40 mph) was recorded.  The 27th was a particularly windy day with many northwesterly gusts over 35 knots (40 mph), and a gust of 41 knots (47 mph) occurring mid morning.     

Fog

Low cloud and mist thickened at times into fog on the morning of the 25th.

Statistics for January 2019

Reporting Station Highest Temp Lowest Temp Rain Total (mm) Wettest Rain days
Shoreham Airport 12.8 -5.7 28 8 12
Thorney Island 11.8 -6.5 24 13 11
Gatwick Airport 11.3 -7.8 27 10 13
Herstmonceux 12.0 -4.4 24 7 13
Bournemouth (Hurn) 13.6 -8.2 38 13 12
Middle Wallop 11.4 -5.9 37 10 9
Dieppe 10.4 -4.7 55 10 19
 
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