POTOMAC, MARYLAND

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

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DAILY WEATHER AVERAGE - 18 JANUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.5 ^°C	4.2 ^°C	-4.4 ^°C	12 ^°C (2012)	-11 ^°C (2016)
Dewpoint	-6.8 ^°C	-0.3 ^°C	-10.8 ^°C	9 ^°C (2012)	-21 ^°C (2009)
Humidity	65.5 ^%	87.3 ^%	50.2 ^%		34 ^% (2009)
Barometer	1015.9 ^hPa	1021.7 ^hPa	1009.1 ^hPa	1032.8 ^hPa (2013)	1002.4 ^hPa (2010)
Wind Speed	11.3 ^km/h	25.3 ^km/h		42.6 ^km/h (2012)
Wind Gust		50.1 ^km/h		64.9 ^km/h (2012)
Precipitation	6.35 ^mm			10.92 ^mm (2011)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	SSW (205.4 °)

Weather Element	Total
Heating Degree Days	18.4 (Base 18.3)

Total Years on Record: 9

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