ROCKVILLE, MARYLAND

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Elevation: 127 meters Latitude: 39 06N Longitude: 077 06W

WEATHER

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DAILY WEATHER AVERAGE - 5 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	4.3 ^°C	8.3 ^°C	0.1 ^°C	20 ^°C (2013)	-6 ^°C (2008)
Dewpoint	-0.7 ^°C	3.2 ^°C	-4.6 ^°C	16 ^°C (2013)	-11 ^°C (2012)
Humidity	71.7 ^%	86.4 ^%	54.3 ^%		38 ^% (2012)
Barometer	1022 ^hPa	1025.4 ^hPa	1019 ^hPa	1041 ^hPa (2015)	1005.1 ^hPa (2007)
Wind Speed	9 ^km/h	19.6 ^km/h		33.3 ^km/h (2010)
Wind Gust		38.5 ^km/h		46.3 ^km/h (2012)
Precipitation	14.22 ^mm			28.7 ^mm (2009)

Weather Element	Average
Visibility	13.7 ^km
Wind Direction	SSE (173.3 °)

Weather Element	Total
Heating Degree Days	14.1 (Base 18.3)
Growing Degree Days	5 (Base 10)

Total Years on Record: 9

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