June at Cholsey
 

Note that I use a Fine Offset and the max temps are ~5 or 6 degrees high
as a consequence.

Summary for June 2017

Temperature (°C):
Mean (1 minute) 19.3
Mean (min+max) 19.1
Mean Minimum 12.4
Mean Maximum 25.9
Minimum 7.9 day 04
Maximum 35.3 day 21
Highest Minimum 17.9 day 20
Lowest Maximum 18.1 day 06
Air frosts 0

Rainfall (mm):
Total for month 43.2
Wettest day 12.6 day 06
High rain rate 14.4 day 04
Rain days 10
Dry days 20

Wind (kts):
Highest Gust 26.1 day 06
Average Speed 4.3
Wind Run 3093.2 nm
Gale days 0

Pressure (hPa):
Maximum 1027.1 day 17
Minimum 985.5 day 06