SEPTEMBER 2020

A warm September, the mean temperature rising until 15^th then cooling again, with an autumnal feel to the end of the month. The monthly Mean temperature of 14.7C was the 7^th highest in 65 years, and the Mean Max 19.6C was 9^th highest on record.
The highest September on record was 30.8C on 15^th.

Rainfall was just 22mm, the 10^th lowest on record for September, following our very wet August. Only 3 days had a worthwhile amount of rainfall, over 4.5mm on each of 2^nd, 23^rd and 30^th, accounting for 15.4mm of the month’s rainfall.

Many days were bright and sunny for much of the time, let down by very dull 23^rd and 30^th. Windiest day was 25^th.

  
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Seasonal Summary for
Summer 2020 (Jun, Jul, Aug)
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A warmer but wetter summer than usual with wet spells (especially in August), dry spells, hot spells (in June and August) and cooler spells, more extreme than the statistics suggest.

                 this year  normal   anomaly
MeanMax         21.7       20.6          +1.1
MEAN                16.9        15.8         +1.1 (11^th = highest)
MeanMin          12.1        10.9         +1.2 
(5^th  = highest)

TEMPERATURES

19.6 mean max (C) 
   9.8 mean min (C) 
 14.7 mean (C)  +0.8 diff from av (C)

 30.8 high max (C) on 15
 11.7 low max (C)  on 26
 14.7 high min (C) on  9
   1.9 low min (C) on  28

OTHER  

1 day with ground frost, no air frost
1 day with fog 
No days with thunder
54% cloud cover percent
89% mean RH 
Mean pressure was 1017.3mb