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> WEATHER DATA

PENNSYLVANIA / Harrisburg
Latitude (N): 40.22
Longitude (W): 76.85
Elevation (feet):
348
Annual Precipitation (inches):
39
Annual heating degree days (base 65 deg. F): 5,340

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
3.8 6.1 4.3 1.6
BTU/ft2
1,205 1,935 1,364 508
On vertical surface
kWh/m2
3.4 2.5 3.3 2.7
BTU/ft2
1,078 793 1,047 856


AVERAGE TEMPERATURE AND WIND SPEED

 
March
June
September
December
Daily Min. - Degrees F 32 61 56 27
Daily Max. - Degrees F 50 81 76 41
Wind Speed - miles/hour 9.2 6.7 6.0 8.1

 

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