Dry and rather cold

Temperatures

The average maximum temperature during November 2017 in Shoreham was 10.9 Celsius (52F), and that was close to normal for the time of year. The average minimum temperature was 4.8 Celsius (41F), and that was  more than 1 Celsius (1.8F) below  the normal November value.

The highest temperature recorded during the month was 15.7 Celsius (60F) on the 1st. There were 3 other very mild days, the 4th and 22nd,  both with highs of 14.7 Celsius (59F),  and the 10th with a maximum of 14.1 Celsius (57F).  A further 6 days had highs above 13 Celsius (55F).  There was a general lowering of temperatures during the month with only 2 of the 10 mildest days occurring after mid month. There were no particularly cold days during November, but on 11 days the maxima remained below 10 Celsius (50F). Only 3 of these colder days occurred before mid month, whilst 6 were logged during the final week of the month. In fact, the 5 coldest days of the month occurred between the 25th and 30th. On 3 of these days the maximum temperature was just above 7 Celsius (45F), but on the 29th the maximum was only 5.6 Celsius (42F).  However, the 30th was the coldest day of the month with a high of just 4.2 Celsius (40F).

There were several mild nights during November, but perhaps surprisingly,  the mildest nights were in  the second half of the month. On 5 occasions the temperature stayed above 10 Celsius (50F). The 4th, 7th and 23rd each had minima above 10 Celsius (50F), but only the 21st and 22nd night-time had temperatures above 11 Celsius (52F). The lowest value on the 21st was 11.7 Celsius (53F), but on the following night the minimum was 12.8 Celsius (55F). There were many chilly nights, and on 17 occasions the temperature dipped below 5 Celsius (41F), including 9 nights when the temperature fell below 2 Celsius (36F). However, only 1 of these colder nights occurred before mid month.  On the 9th, a minimum of 1.7 Celsius (35F) was recorded. There were chilly nights between the 17th and 20th, but the coldest nights were confined to the last week of November. On the 25th there was a minimum of minus 0.9 Celsius (30F), but the following night was a fraction colder at minus 1.0 Celsius (30F).

The sea temperature fell steadily from 14 or 15 Celsius (57-59F) at the beginning of November to  11 Celsius (52F) at the end of the month.

Frost

There were 3 air frosts in Shoreham during November. The 25th, 26th and also the 30th, when a minimum of minus 0.1 Celsius (32F) was recorded. There were 9 grass frosts, but only 2 of these occurred before the 18th. The 6th and 9th had grass minima of minus 2.2 Celsius (28F) and minus 1.7 Celsius (29F) respectively. Three consecutive nights,  the 18th, 19th and 20th, had grass frost, and on the 18th and 19th there were grass minima of minus 3.3 Celsius (26F).  Another minimum of minus 3.3 Celsius (26F) occurred on the 25th. On  the following night the ground temperature plunged to minus 5 Celsius (23F), with grass frost also recorded on the 28th and the last night of the month.

Rain

There were 31.8 millimetres (1.25 ins.) of rain during November, and that was less than 40% of the  average. Rain fell on 13 days, about 3 days below what one would expect at this time of year, and wet days ( rainfall of 1 millimetre (0.04 ins) or more)  amounted to 10 days. The month was unsettled with the end of November producing the only spell of 3 completely dry days. However, amounts of rain were mostly small with only 4 days recording more than 2 millimetres (0.08 ins.). On the 7th, a total of 6.2 millimetres (0.2 ins.) was measured, and this proved to be the wettest day of the month. The 10th and 11th both recorded over 5 millimetres (0.2 ins.) of rain, and another 5.4 millimetres were logged on the 22nd. Small amounts of measurable rain then fell on 3 days during the remainder of the month.

*A rain day is from 0900-0900 UTC

Hail

There was no hail reported  in Shoreham during November.

Thunder

There was no thunder reported in Shoreham during November.

Wind

November was an unusual ‘north-westerly’ month with winds from that direction dominating on 18 days. It was quite breezy at times, especially in the latter half of the month, and although there were no exceptional gusts, there were readings above 25 knots (29 mph) at Shoreham Airport on 9 days. The highest gust recorded was 42 knots (48 mph), from the southwest, late in the evening on the 22nd and in the early hours of the 23rd.

Fog

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

Statistics for November 2017