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> WEATHER DATA

TEXAS / Houston
Latitude (N): 29.98
Longitude (W): 95.37
Elevation (feet):
108
Annual Precipitation (inches):
46
Annual heating degree days (base 65 deg. F): 1,550

APPROXIMATE SUN ANGLE (at noon facing due south)

Mar 21
June 21
Sept 21
Dec 21
60 deg.
84 deg.
60 deg.
36 deg.



AVERAGE DAILY SOLAR RADIATION

 
March
June
September
December
On horizontal surface
kWh/m2
4.2 6.0 4.9 2.5
BTU/ft2
1,332 1,903 1,554 793
On vertical surface
kWh/m2
3.0 1.8 3.0 3.2
BTU/ft2
952 571 952 1,015


AVERAGE TEMPERATURE AND WIND SPEED

 
March
June
September
December
Daily Min. - Degrees F 50 71 68 42
Daily Max. - Degrees F 71 90 88 65
Wind Speed - miles/hour 9.8 8.1 7.4 8.7

 

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