RESTON, VIRGINIA

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Elevation: 88 meters Latitude: 38 57N Longitude: 077 27W

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DAILY WEATHER AVERAGE - 1 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	24.9 ^°C	30.9 ^°C	19.8 ^°C	35.6 ^°C (2011)	13.3 ^°C (1997)
Dewpoint	18.7 ^°C	20.7 ^°C	16.5 ^°C	24 ^°C (2004)	8.9 ^°C (1997)
Humidity	71.4 ^%	93.3 ^%	46.4 ^%		24 ^% (1997)
Barometer	1016.3 ^hPa	1017.9 ^hPa	1014.6 ^hPa	1028.4 ^hPa (2001)	1006.4 ^hPa (2008)
Wind Speed	8.4 ^km/h	20.1 ^km/h		42.6 ^km/h (2000)
Wind Gust		35.9 ^km/h		57.5 ^km/h (2000)
Precipitation	19.81 ^mm			55.12 ^mm (2000)

Weather Element	Average
Visibility	13.7 ^km
Wind Direction	S (184.5 °)

Weather Element	Total
Cooling Degree Days	7 (Base 18.3)
Growing Degree Days	15.3 (Base 10)

Total Years on Record: 21

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