MANASSAS, VIRGINIA

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Elevation: 65 meters Latitude: 38 47N Longitude: 077 30W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	0.7 ^°C	6.2 ^°C	-4.7 ^°C	16 ^°C (1997)	-12 ^°C (2004)
Dewpoint	-5.4 ^°C	-2.3 ^°C	-9 ^°C	11 ^°C (2002)	-21 ^°C (2005)
Humidity	67 ^%	87 ^%	44.1 ^%		22 ^% (2005)
Barometer	1019.6 ^hPa	1023.7 ^hPa	1015.2 ^hPa	1036.6 ^hPa (2015)	999 ^hPa (2002)
Wind Speed	9.5 ^km/h	24.1 ^km/h		44.4 ^km/h (2004)
Wind Gust		45.7 ^km/h		66.6 ^km/h (2004)
Precipitation	31.5 ^mm			31.5 ^mm (2002)

Weather Element	Average
Visibility	15.1 ^km
Wind Direction	SSE (164.4 °)

Weather Element	Total
Heating Degree Days	17.6 (Base 18.3)

Total Years on Record: 20

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