PITSFORD HALL WEATHER STATION
NORTHAMPTON, UNITED KINGDOM

REVIEW OF SEPTEMBER 2008

Air Temperatures
The Highest Maximum: 20.2 C on 10th
The Lowest Maximum: 14.9 C on 16th
The Highest Minimum: 13.3 C on 11th
The Lowest Minimum: 5.2 C on 27th
The Mean Maximum: 17.5 C
The Mean Minimum: 9.9 C
The Overall Mean: 13.7 C
Difference from the Monthly Mean: 0.0 C

Black Bulb
Maximum (at 0900): 21.3 C on 2nd
Mean (at 0900): 16.6 C

Relative Humidity:
Highest Relative Humidity (at 0900): 100.0 % on 27th
Lowest Relative Humidity (at 0900): 67.1 % on 15th
Mean Relative Humidity (at 0900): 87.9 %

Dew Point:
The Highest Dew Point (0900): 13.6 C on 10th
The Lowest Dew Point (at 0900): 8.7 C on 15th
The Mean Dew Point (at 0900): 11.3 C

Rainfall:
Total: 94.4 mm
Difference from the Monthly Mean: 166.5 %
Duration: 58.2 hrs
Highest 24 hour fall (0900 to 0900): 32.7 mm on 6th
Rain Days (/=0.2mm): 15
Wet Days (/=1.0mm): 11

Sunshine:
Total Duration of Bright Sunshine: 106.9 hrs
Sunniest day: 8.1 hrs on 20th
No. of days without sunshine: 4
Difference from the Monthly Mean: 80.7 %
Cloud cover (mean at 0900): 6.2 oktas (77.5 %)

Pressure (reduced to sea level):
The Highest Pressu 1038.2 mb on 26th
The Lowest Pressu 991.8 mb on 6th
Mean Pressure (recorded at 0900): 1017.5 mb

Winds
Run of wind (mean over 24 hrs): 80.0 miles
Mean daily wind speed: 4.3 mph
Run of wind (cumulative): 2398.9 miles
Highest Maximum Gust: 35 mph on 30th
No. of gusts of 50mph or mo 0
Highest wind strength (at 0900): 11.5 mph on 4th
Mean wind strength (at 0900): 5.9 mph

Winds from the Following Directions:

N 2 NE 1 E 6 SE 3 S 6 SW 6 W 2 NW 3 Calm 1

Concrete
Lowest Concrete Minimum: 3.8 C on 27th
Mean Concrete Minimum: 8.5 C

Evaporation
Piche 56.1 ml
Pan 33.97 mm

Days with:
Thunder: 1
Hail 5mm: 0
Hail /=5mm: 0
Snow or snow & rain: 0
Snow lying: 0
Fog: 1
Air Frost: 0
Gales: 0

All data © Pitsford Hall weather station.