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> WEATHER DATA

ARIZONA / Phoenix
Latitude (N): 33.43
Longitude (W): 112.02
Elevation (feet): 1,112
Annual Precipitation (inches): 8
Annual heating degree days (base 65 deg. F): 1,440

APPROXIMATE SUN ANGLE (at noon facing due south)

Mar 21
June 21
Sept 21
Dec 21
56 deg.
80 deg.
56 deg.
32 deg.



AVERAGE DAILY SOLAR RADIATION

 
March
June
September
December
On horizontal surface
kWh/m2
5.5 8.4 6.1 3.0
BTU/ft2
1,745 2,664 1,935 952
On vertical surface
kWh/m2
4.5 2.3 4.2 4.8
BTU/ft2
1,427 730 1,332 1,523


AVERAGE TEMPERATURE AND WIND SPEED

 
March
June
September
December
Daily Min. - Degrees F 49 73 73 42
Daily Max. - Degrees F 76 103 98 66
Wind Speed - miles/hour 7.2 7.2 6.7 5.6

 

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