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Table 1 Climatic data for Easthampstead (Bracknell) with the NASA reported irradiation data and averaged measured data for the period 1981-1983

From: Monthly-averaged hourly solar diffuse radiation models for world-wide locations

  Unit Climate data location        
Latitude °N 51,42        
Longitude °E –0,75        
Elevation m 58,00        
Heating design temperature °C –1,74        
Cooling design temperature °C 22,96        
Earth temperature amplitude °C 14,35        
Frost days at site day 37,00        
Month Air temperature Relative humidity Daily solar radiation-horizontal Atmospheric pressure Wind speed Earth temperature Heating degree-days Cooling degree-days Average measured radiation
  °C % kWh/m2/day kPa m/s °C °C-d °C-d kWh/m2/day
January 4,2 83,90 0,77 100,8 6,3 3,1 426 1 0,71
February 4,3 80,20 1,39 101,0 5,8 3,6 380 1 1,28
March 6,4 76,80 2,34 100,9 6,0 6,2 353 4 2,18
April 8,6 69,80 3,59 100,7 5,1 9,1 279 21 3,55
May 12,7 64,00 4,57 100,9 4,7 13,8 168 92 4,11
June 16,1 60,80 4,84 100,9 4,4 17,7 75 177 4,86
July 18,6 60,20 4,80 100,9 4,4 20,4 25 261 4,77
August 18,6 61,20 4,23 100,9 4,3 20,3 26 264 4,23
September 15,5 66,30 2,86 100,9 5,0 16,5 83 164 2,85
October 11,7 74,10 1,73 100,7 5,5 11,5 191 73 1,57
November 7,3 83,20 0,96 100,7 5,9 6,4 318 11 0,80
December 4,9 85,00 0,60 100,8 6,1 3,8 404 3 0,60
Annual          
  10,7 72,10 2,72 100,8 5,3 11,0 2728 1072  
Measured at (m)      10,0 0,0    
  1. Website: http://eosweb.larc.nasa.gov/cgi-bin/sse/retscreen.cgi?email=rets@nrcan.gc.ca