STERLING, VIRGINIA

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Elevation: 9 meters Latitude: 38 59N Longitude: 077 28W

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DAILY WEATHER AVERAGE - 21 JULY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	24.8 ^°C	30.6 ^°C	19.6 ^°C	37.2 ^°C (2011)	11.1 ^°C (2001)
Dewpoint	18.9 ^°C	20.8 ^°C	16.7 ^°C	24.4 ^°C (2011)	6.1 ^°C (2007)
Humidity	72.4 ^%	93.6 ^%	49.2 ^%		25 ^% (2007)
Barometer	1015.2 ^hPa	1016.9 ^hPa	1013.2 ^hPa	1022.7 ^hPa (2014)	1003.7 ^hPa (2015)
Wind Speed	8.2 ^km/h	18.7 ^km/h		33.3 ^km/h (2003)
Wind Gust		33.8 ^km/h		48.1 ^km/h (1998)
Precipitation	2.54 ^mm			4.32 ^mm (2012)

Weather Element	Average
Visibility	12.4 ^km
Wind Direction	S (180.8 °)

Weather Element	Total
Cooling Degree Days	6.8 (Base 18.3)
Growing Degree Days	15.1 (Base 10)

Total Years on Record: 21

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