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> WEATHER DATA

KANSAS / Topeka
Latitude (N): 39.07
Longitude (W): 95.63
Elevation (feet): 886
Annual Precipitation (inches): 33
Annual heating degree days (base 65 deg. F): 5,320

APPROXIMATE SUN ANGLE (at noon facing due south)

Mar 21
June 21
Sept 21
Dec 21
51 deg.
75 deg.
51 deg.
27 deg.



AVERAGE DAILY SOLAR RADIATION

 
March
June
September
December
On horizontal surface
kWh/m2
4.0 6.5 4.6 1.9
BTU/ft2
1,269 2,062 1,459 603
On vertical surface
kWh/m2
3.5 2.5 3.6 3.4
BTU/ft2
1,110 793 1,142 1,078


AVERAGE TEMPERATURE AND WIND SPEED

 
March
June
September
December
Daily Min. - Degrees F 32 63 56 21
Daily Max. - Degrees F 55 84 80 40
Wind Speed - miles/hour 11.9 9.4 8.3 9.4

 

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