CASTLE ROCK, COLORADO

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Elevation: 1902 meters Latitude: 39 22N Longitude: 104 52W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-1.2 ^°C	5.7 ^°C	-7.6 ^°C	14 ^°C (2004)	-16 ^°C (2008)
Dewpoint	-8.5 ^°C	-4.5 ^°C	-10.8 ^°C	2 ^°C (2003)	-13 ^°C (2004)
Humidity	62.4 ^%	84.5 ^%	40.9 ^%		10 ^% (2004)
Barometer	1012.2 ^hPa	1015.9 ^hPa	1008.5 ^hPa	1025.4 ^hPa (2005)	999 ^hPa (2010)
Wind Speed	16.7 ^km/h	31.2 ^km/h		66.6 ^km/h (2010)
Wind Gust		50.2 ^km/h		83.4 ^km/h (2010)
Precipitation	4.83 ^mm			4.83 ^mm (2011)

Weather Element	Average
Visibility	14.2 ^km
Wind Direction	SSW (199.7 °)

Weather Element	Total
Heating Degree Days	19.3 (Base 18.3)

Total Years on Record: 14

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