MOUNT WILSON - NORTHWEST, CALIFORNIA

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Elevation: 4250 feet Latitude: 34 15N Longitude: 118 06W

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DAILY WEATHER AVERAGE - DECEMBER 13

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	41 ^°F	50.3 ^°F	32.5 ^°F	71.6 ^°F (2010)	(2012)
Dewpoint	21.2 ^°F	31.2 ^°F	15.4 ^°F	43.9 ^°F (1995)	-7.6 ^°F (2010)
Humidity	53.6 ^%	64.3 ^%	39 ^%		4 ^% (2010)
Wind Speed	5.5 ^mph	10.4 ^mph		20.7 ^mph (2009)
Wind Gust		17.6 ^mph		32.2 ^mph (2009)
Precipitation	---			--- ()

Weather Element	Average
Visibility	63.6 ^mi
Wind Direction	SSW (190.1 °)

Weather Element	Total
Heating Degree Days	23.6 (Base 18.3)
Growing Degree Days	5.9 (Base 10)

Total Years on Record: 17

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