POTOMAC, MARYLAND

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

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DAILY WEATHER AVERAGE - 25 SEPTEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	17.9 ^°C	22.4 ^°C	14.2 ^°C	31 ^°C (2010)	7 ^°C (2013)
Dewpoint	13.2 ^°C	16.2 ^°C	10.4 ^°C	21 ^°C (2011)	4 ^°C (2013)
Humidity	76.5 ^%	93.4 ^%	57.6 ^%		29 ^% (2010)
Barometer	1021.7 ^hPa	1023.7 ^hPa	1019.6 ^hPa	1030.1 ^hPa (2014)	1010.8 ^hPa (2010)
Wind Speed	4.5 ^km/h	11.9 ^km/h		16.7 ^km/h (2010)
Wind Gust		29.6 ^km/h		35.2 ^km/h (2008)
Precipitation	20.83 ^mm			41.91 ^mm (2014)

Weather Element	Average
Visibility	14.5 ^km
Wind Direction	ENE (59.9 °)

Total Years on Record: 7

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