RESTON, VIRGINIA

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

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DAILY WEATHER AVERAGE - 4 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	25.5 ^°C	31.4 ^°C	19.6 ^°C	37.3 ^°C (2002)	12 ^°C (1998)
Dewpoint	18.8 ^°C	20.9 ^°C	16.3 ^°C	24.4 ^°C (2010)	9.4 ^°C (2007)
Humidity	70 ^%	94.2 ^%	44.4 ^%		29 ^% (2007)
Barometer	1015.6 ^hPa	1017.6 ^hPa	1013.2 ^hPa	1023.4 ^hPa (1996)	1005.4 ^hPa (2011)
Wind Speed	8.5 ^km/h	19.3 ^km/h		37 ^km/h (2004)
Wind Gust		36.2 ^km/h		51.8 ^km/h (2004)
Precipitation	10.16 ^mm			21.84 ^mm (2004)

Weather Element	Average
Visibility	13.7 ^km
Wind Direction	SSW (202 °)

Weather Element	Total
Cooling Degree Days	7.2 (Base 18.3)
Growing Degree Days	15.6 (Base 10)

Total Years on Record: 21

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