seasonal Averages and Totals for Summer 2017

*Anomaly figures compare values to 30 year averages*

Anomaly

Date

Temperatures

(ยบ C)

Mean seasonal

16.8

+0.3

Warmest day

 30.1

 19/6           

Coldest day

 13.8

 28/6        

Average maximum

  21.2

  +0.1

Warmest night

 17.7

 19/6        

Coldest night

  6.0

 31/8    

Average minimum

  12.4

  +0.6

Lowest Grass Minimum

 3.4

 31/8

Rainfall

(mm)

Total

211.4

  117%

Rain days > 0.2mm

   44

Wettest day

 27.0

  5/6     

Wet days>1.0mm

   28

Longest dry period

16 days

Very wet days > 5.0mm

   13

11th to 26th June

Sunshine

(hr)

Total

498.3

  87%

Sunniest day

 14.2

6/6        

Days without sunshine

4

Longest period without sun

2 days

Days with:

Air frosts

     0

Snowfall

0

Ground frosts

     0

Snow lying

0

Fog

0

Gales

0

Thunder

3

Hail

2

Brief comments on the climate statistics for summer 2017

This was the coolest summer since 2015 (15.9C); though surprisingly, only 2 have been warmer since 2006 ( 2013 2016).

It was the wettest summer since 2012 (299.6mm); only 3 summers have been wettest since that dreadfully wet summer of 2007 (2008 2010 2012).

It was our cloudiest summer since 2012 (405.3hr); only 4 summers have been duller since 1981 (1987 1988 2000 2012).