ROCKVILLE, MARYLAND

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

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DAILY WEATHER AVERAGE - 23 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	21.2 ^°C	26.5 ^°C	16.1 ^°C	29 ^°C (2012)	12 ^°C (2011)
Dewpoint	16.4 ^°C	18.6 ^°C	14.3 ^°C	21 ^°C (2009)	8 ^°C (2011)
Humidity	76.4 ^%	95.5 ^%	55.4 ^%		32 ^% (2011)
Barometer	1018.3 ^hPa	1021 ^hPa	1016.3 ^hPa	1027.8 ^hPa (2008)	1010.2 ^hPa (2009)
Wind Speed	3.7 ^km/h	13.2 ^km/h		14.8 ^km/h (2011)
Wind Gust		25.9 ^km/h		25.9 ^km/h (2010)
Precipitation	10.92 ^mm			28.96 ^mm (2014)

Weather Element	Average
Visibility	14.8 ^km
Wind Direction	ESE (99.3 °)

Weather Element	Total
Cooling Degree Days	3 (Base 18.3)
Growing Degree Days	11.3 (Base 10)

Total Years on Record: 8

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