ROCKVILLE, MARYLAND

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

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DAILY WEATHER AVERAGE - 22 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	22.5 ^°C	27.8 ^°C	17.4 ^°C	30 ^°C (2010)	14 ^°C (2008)
Dewpoint	17.4 ^°C	20.3 ^°C	15.4 ^°C	24 ^°C (2010)	9 ^°C (2011)
Humidity	75.5 ^%	94.8 ^%	53.4 ^%		34 ^% (2011)
Barometer	1017.9 ^hPa	1019.6 ^hPa	1015.9 ^hPa	1028.4 ^hPa (2008)	1009.8 ^hPa (2009)
Wind Speed	5.8 ^km/h	18.8 ^km/h		31.5 ^km/h (2011)
Wind Gust		30.6 ^km/h		35.2 ^km/h (2011)
Precipitation	12.45 ^mm			35.31 ^mm (2009)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	SE (129.4 °)

Weather Element	Total
Cooling Degree Days	4.2 (Base 18.3)
Growing Degree Days	12.6 (Base 10)

Total Years on Record: 8

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