MOUNT WILSON - NORTHWEST, CALIFORNIA

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Elevation: 1295 meters Latitude: 34 15N Longitude: 118 06W

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DAILY WEATHER AVERAGE - 9 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	5.5 ^°C	11 ^°C	0 ^°C	19 ^°C (2012)	(2013)
Dewpoint	-6.2 ^°C	-0.4 ^°C	-11.3 ^°C	7 ^°C (2010)	-28 ^°C (2008)
Humidity	50.2 ^%	71.1 ^%	31.7 ^%		4 ^% (2008)
Wind Speed	9.7 ^km/h	17.4 ^km/h		40.7 ^km/h (1996)
Wind Gust		30.4 ^km/h		68.6 ^km/h (1998)
Precipitation	---			--- ()

Weather Element	Average
Visibility	100.4 ^km
Wind Direction	ESE (128.7 °)

Weather Element	Total
Heating Degree Days	12.8 (Base 18.3)
Growing Degree Days	3.4 (Base 10)

Total Years on Record: 17

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