A very warm, but also a rather wet, month

Temperatures

The average maximum temperature during June 2017 in Shoreham was 22.1 Celsius (72F), and that was almost 4 Celsius (7F) above normal for the time of year. The average minimum temperature was 13.5 Celsius (56F), and that was over 1 Celsius (2F) above the normal June value.
The highest temperature recorded during the month was 31.7 Celsius (89F) on the 21st, but there were several other very warm days between the 17th and 21st, including the 18th with 30.1 Celsius (86F) and 30.4 Celsius (86F) on the 20th. The temperature reached 27.0 Celsius (81F) on the 14th, and in total there were 6 days when the temperature rose above 25 Celsius (77F). There was plenty of fairly warm weather, with a further 13 days when the temperature exceeded 20 Celsius (68F). There were no particularly cool days during June, and although the temperature failed to rise above 18 Celsius (64F) on 3 occasions, the lowest value for the month was 17.0 Celsius (63F), some 6 Celsius (11F) above the record low for June.

There were several warm nights during June. but with most of the warmer nights occurring after mid month. There were 8 nights with minimum temperatures above 15 Celsius (59F), although only 1 of these warmer nights occurred before mid month. On the 11th a minimum of 15.4 Celsius (60F) was measured, although this figure was exceeded on 5 nights between the 19th and 24th. On the night of the 20th/21st a low of 18.1 Celsius (64F), occurred, with the following night 1 Celsius (1.8F) cooler.  There were no especially chilly nights, although on 2 occasions the temperature fell below 10 Celsius (50F),  The coldest night, by a fraction, was the 3rd/4th,  when a minimum of 9.8 Celsius (50F) was measured.
The sea temperature climbed steadily from 13 Celsius (55F) at the beginning of June to a comfortable 18 or 19 Celsius (64-66F) during the third week. Despite lower air temperature, the sea stayed relatively warm until the end of the month.

Frost

There were no frosts in Shoreham during June. The lowest grass minimum was 6.1 Celsius (43F) on the 13th.

Rain

There were 53.0 millimetres (2.1 ins.) of rain during June, and that was about 20% above average. Rain fell on 9 days, close to what one would expect at this time of year, but wet days ( rainfall of 1 millimetre (0.04 ins) or more) only amounted to 4 days, roughly half of what can be expected in June. A little rain fell on the 2nd, but the first high rainfall occurred on the 5th. A total of 21.4 millimetres (0.8 ins.) was measured with a further 6.6 millimetres (0.25 ins.) logged on the 8th.  No measurable rain fell between the 9th and 21st (13 days) and only just over 1 millimetre (0.05 ins.) fell between the 22nd and 26th. However, on the following day, steady rain contributed another 22.2 millimetres  (0.9 ins.) to the monthly total.  Almost 95% of the June rain total fell on just 3 days, the 5th, 8th and 27th. Although it rained on the last 3 days of the month, once again amounts were small.

*A rain day is from 0900-0900 UTC

Hail

There was no hail reported  in Shoreham during June.

Thunder

There were 3 days when thunder was observed in Shoreham. Showery rain on the evening of the 8th produced 1 late flash and rumble. On the morning of the 22nd there was plenty of thunder but most of it stayed to the west and north. On the 27th there were a couple of late morning thunderstorms embedded in the steady rain.
Wind

After a quiet start to the month, it became very windy at the end of the first week with southwesterly gusts at Shoreham Airport reaching 40 and 35 knots (46 and 40 mph) on the 6th and 7th respectively.  Southwesterly winds continued into the second week, but after mid month breezes were generally lighter, except between the 22nd and 26th, and often blowing from between northwest and northeast..

Fog

There was no fog observed in Shoreham during June.

Statistics for June 2017