MOUNT WILSON - NORTHWEST, CALIFORNIA

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

WEATHER

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DAILY WEATHER AVERAGE - DECEMBER 15

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	40.5 ^°F	50.3 ^°F	30.1 ^°F	73.4 ^°F (2013)	(2012)
Dewpoint	20.9 ^°F	29.6 ^°F	15.3 ^°F	42.8 ^°F (2010)	-2.2 ^°F (2006)
Humidity	50.9 ^%	65.7 ^%	34.9 ^%		6 ^% (2006)
Wind Speed	7 ^mph	12.3 ^mph		23 ^mph (2008)
Wind Gust		21.3 ^mph		33.4 ^mph (1998)
Precipitation	---			--- ()

Weather Element	Average
Visibility	55.2 ^mi
Wind Direction	SSE (151.1 °)

Weather Element	Total
Heating Degree Days	24.8 (Base 18.3)
Growing Degree Days	3.6 (Base 10)

Total Years on Record: 17

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