POTOMAC, MARYLAND

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

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DAILY WEATHER AVERAGE - 20 JANUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-1 ^°C	3.6 ^°C	-5.6 ^°C	13 ^°C (2013)	-13 ^°C (2009)
Dewpoint	-8.9 ^°C	-4.4 ^°C	-12.6 ^°C	0 ^°C (2010)	-21 ^°C (2013)
Humidity	57.8 ^%	82.9 ^%	39.8 ^%		21 ^% (2012)
Barometer	1016.9 ^hPa	1022 ^hPa	1011.9 ^hPa	1036.9 ^hPa (2008)	1005.1 ^hPa (2011)
Wind Speed	8.5 ^km/h	23.8 ^km/h		38.9 ^km/h (2013)
Wind Gust		39.4 ^km/h		55.5 ^km/h (2013)
Precipitation	1.78 ^mm			1.78 ^mm (2010)

Weather Element	Average
Visibility	15.6 ^km
Wind Direction	SSW (186.4 °)

Weather Element	Total
Heating Degree Days	19.3 (Base 18.3)

Total Years on Record: 9

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