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> WEATHER DATA

OHIO / Dayton
Latitude (N): 39.90
Longitude (W): 84.22
Elevation (feet):
1,004
Annual Precipitation (inches):
35
Annual heating degree days (base 65 deg. F): 5,690

APPROXIMATE SUN ANGLE (at noon facing due south)

Mar 21
June 21
Sept 21
Dec 21
50 deg.
74 deg.
50 deg.
26 deg.



AVERAGE DAILY SOLAR RADIATION

 
March
June
September
December
On horizontal surface
kWh/m2
3.6 6.2 4.4 1.5
BTU/ft2
1,142 1,967 1,396 476
On vertical surface
kWh/m2
3.1 2.5 3.4 2.3
BTU/ft2
983 793 1,078 730


AVERAGE TEMPERATURE AND WIND SPEED

 
March
June
September
December
Daily Min. - Degrees F 31 59 55 24
Daily Max. - Degrees F 50 82 76 39
Wind Speed - miles/hour 11.4 8.7 7.8 10.7

 

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