REVIEW OF JULY 2008

PITSFORD HALL WEATHER STATION

NORTHAMPTON, UK

Headline: Cool and unsettled at the start, becoming drier and very warm at times later.




Air Temperatures
The Highest Maximum: 28.7 C on 28th
The Lowest Maximum: 16.1 C on 17th
The Highest Minimum: 16.4 C on 27th
The Lowest Minimum: 8.0 C on 4th, 5th & 21st
The Mean Maximum: 21.3 C
The Mean Minimum: 12.0 C
The Overall Mean: 16.7 C
Difference from the Monthly Mean: -0.1 C

Black Bulb
Maximum (at 0900): 33.2 C on 1st
Mean (at 0900): 22.2 C

Relative Humidity:
Highest Relative Humidity (at 0900): 95.7 % on 9th
Lowest Relative Humidity (at 0900): 44.8 % on 1st
Mean Relative Humidity (at 0900): 77.6 %

Dew Point:
The Highest Dew Point (0900): 18.6 C on 27th
The Lowest Dew Point (at 0900): 7.5 C on 1st
The Mean Dew Point (at 0900): 12.8 C

Rainfall:
Total: 62.6 mm
Difference from the Monthly Mean: 130.7 %
Duration: 40.4 hrs
Highest 24 hour fall (0900 to 0900): 14.0 mm on 11th
Rain Days (/=0.2mm): 12
Wet Days (/=1.0mm): 12

Sunshine:
Total Duration of Bright Sunshine: 188.4 hrs
Sunniest day: 13.6 hrs on 21st
No. of days without sunshine: 2
Difference from the Monthly Mean: 106.6 %
Cloud cover (mean at 0900): 5.1 oktas (63.8 %)

Pressure (reduced to sea level at 0900):
The Highest Pressu 1026.1 mb on 22nd
The Lowest Pressu 994.3 mb on 7th
Mean Pressure (recorded at 0900): 1013.2 mb

Winds
Run of wind (mean over 24 hrs): 109.5 miles
Mean daily wind speed: 5.9 mph
Run of wind (cumulative): 3395.8 miles
Highest Maximum Gust: 39 mph on 20th
No. of gusts of 50mph or mo 0
Highest wind strength (at 0900): 17.3 mph on 16th
Mean wind strength (at 0900): 7.4 mph

Winds from the Following Directions:

N 0 NE 1 E 3 SE 4 S 6 SW 5 W 5 NW 7 Calm 0

Concrete
Lowest Concrete Minimum: 6.6 C on 5th & 13th
Mean Concrete Minimum: 11.4 C

Evaporation
Piche 92.9 ml
Pan 97.6 mm

Days with:
Thunder: 2
Hail 5mm: 0
Hail /=5mm: 0
Snow or snow & rain: 0
Snow lying: 0
Fog: 0
Air Frost: 0
Gales: 0

All data © Pitsford Hall weather station.