POTOMAC, MARYLAND

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Elevation: 8 meters Latitude: 39 02N Longitude: 077 15W

WEATHER

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DAILY WEATHER AVERAGE - 18 FEBRUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	3.5 ^°C	9.4 ^°C	-2.4 ^°C	23 ^°C (2011)	-14 ^°C (2015)
Dewpoint	-4.6 ^°C	-0.7 ^°C	-11.3 ^°C	14 ^°C (2008)	-20 ^°C (2011)
Humidity	59.4 ^%	80.7 ^%	36.9 ^%		13 ^% (2011)
Barometer	1015.6 ^hPa	1020.3 ^hPa	1011.2 ^hPa	1035.9 ^hPa (2016)	998 ^hPa (2009)
Wind Speed	13 ^km/h	29 ^km/h		48.1 ^km/h (2011)
Wind Gust		42.8 ^km/h		64.9 ^km/h (2011)
Precipitation	3.3 ^mm			7.11 ^mm (2009)

Weather Element	Average
Visibility	15.3 ^km
Wind Direction	SSW (207.9 °)

Weather Element	Total
Heating Degree Days	14.8 (Base 18.3)
Growing Degree Days	4.3 (Base 10)

Total Years on Record: 9

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