Weather Statistics for this Year          
           
Statistics recorded at Pitsford Hall from January 1 to          
November 6, 2009          
           
           
Air Temperatures          
The Highest Maximum: 30.0 C on 30th June
The Lowest Maximum: 0.6 C on 4th January
The Highest Minimum: 17.1 C on 5th August
The Lowest Minimum: -5.5 C on 6th January
The Mean Maximum: 15.1 C      
The Mean Minimum: 7.0 C      
The Overall Mean: 11.1 C      
Difference from the Yearly Mean: 1.2 C      
           
Solar Radiation (from 1st May)          
Maximum (at 0900): 784.0 W/m^2 on 20th June
Mean (at 0900): 279.0 W/m^2      
           
Relative Humidity:          
Highest Relative Humidity (at 0900): n/a*        
Lowest Relative Humidity (at 0900): 46.4 % on 6th July
Mean Relative Humidity (at 0900): 83.4 %      
           
Dew Point:          
The Highest Dew Point (0900): 18.4 C on 3rd July
The Lowest Dew Point (at 0900): -6.0 C on 6th January
The Mean Dew Point (at 0900): 7.9 C      
           
Rainfall:          
Total: 393.6 mm      
Percentage of the Yearly Mean: 65.5 %      
Duration: 327.0 hrs      
Highest 24 hour fall (0900 to 0900): 20.9 mm on 9th February
Rain Days (>/=0.2mm): 117        
Wet Days (>/=1.0mm): 83        
           
Sunshine:          
Total Duration of Bright Sunshine: 1330.7 hrs      
Sunniest day: 14 hrs on 30th May
No. of days without sunshine: 36        
Percentage of the Yearly Mean: 81.9 %      
Cloud cover (mean at 0900): 5.5 oktas      
           
Pressure (reduced to sea level):          
The Highest Pressure (at 0900): 1038.8 mb on 11th September
The Lowest Pressure (at 0900): 972.3 mb on 23rd January
Mean Pressure (at 0900): 1013.9 mb      
           
Winds          
Run of wind (mean over 24 hrs): 110.5 miles      
Mean daily wind speed: 6 mph      
Run of wind (cumulative): 34120 miles      
Highest Maximum Gust: 50 mph on 25th March
No. of gusts of 50mph or more: 1        
Highest wind strength (at 0900): 28 mph on 1st March
Mean wind strength (at 0900): 8.7 mph      
           
Winds from the Following Directions:          
North 4        
North-north-east 13        
North-east 9        
East-north-east 14        
East 8        
East-south-east 7        
South-east 16        
South-south-east 35        
South 31        
South-south-west 41        
South-west 9        
West-south-west 23        
West 12        
West-north-west 22        
North-west 20        
North-north-west 32        
Calm 13        
           
Concrete          
Lowest Concrete Minimum: -8 C on 8th January
Mean Concrete Minimum: 6.4 C      
           
Evaporation          
Piche 804.1 ml      
           
Days with:          
Thunder: 11        
Hail <5mm: 2        
Hail >/=5mm: 1        
Snow or snow & rain: 14        
Snow lying: 19        
Fog: 12        
Air Frost: 28        
Duration of Air Frost: 203 hrs      
Gales: 0        
           
Evaporation (#2)          
Pan 395.4 mm      
           
Wettest month: 81.3 mm in   July
Driest month: 14.3 mm in   September
Warmest month: 17.1 C~ in   August
Coolest month: 3.0 C~ in   January
Sunniest month: 194.3 hrs in   May
Dullest month: 41.0 hrs in   January
Windiest month: 8.4 mph~ in   January
Calmest month: 4.4 mph~ in   June
           
~ averages          
*max relative humidity is not computed by          
this system          


This page was created by Weather on 06 November 2009.