ELTA averages refer to period 1971-2000. (Raunds Met office 71-91 &
station records 92-00)

Screen air temperatures 0900z-0900z

Highest maximum: 28.0C on the 28th
Lowest maximum: 16.3C on the 17th
Highest minimum: 17.2C on the 27th
Lowest minimum: 8.2C on the 13th
Mean maximum: 21.7C (-0.3C deviation from average)
Mean minimum: 12.3C (+0.7C deviation from average)
Overall mean: 17.0C (+0.2C deviation from average) (min+max/2)

Grass temperatures 0900-0900z

Lowest grass minimum: 4.9C on the 13th
Highest grass minimum: 14.2C on the 29th
Mean grass minimum: 9.4C

Rainfall 0900z-0900z

Total rainfall: 54.0mm (118%of average)
Highest fall 24 hour fall 0900z to 0900z: 14.4mm on the 9th
Rain days: 17 (/=0.2mm)
Wet days: 9 (/=1.0mm)

Air pressure (reduced to sea level)

Highest air pressure at 0900z: 1025.6mb on the 23rd
Lowest air pressure at 0900z: 994.6mb on the 7th
Mean air pressure at 0900z: 1012.8mb

Wind direction and frequency at 0900z

ENE:2, E:2, ESE:2, SSE:2, S:4, SSW:3, SW:5, WSW:3, W:3,WNW:3, NW:1,
NNW:1
...
Days with

Thunder: 3, on the 7th, 8th, 11th.

Regards,

Ian,

Raunds, East Northants. 63m amsl. NGR SP9972.