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United States of America

POTOMAC, MARYLAND


Home > North America > United States > Maryland
Elevation: 27 feet     Latitude: 39 02N     Longitude: 077 15W

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DAILY WEATHER AVERAGE - JUNE 21
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 68.1 °F 83.5 °F 55.7 °F 93.2 °F (2012) (2012)
Dewpoint 57.2 °F 66 °F 56.9 °F 73.4 °F (2012) 44.6 °F (2008)
Humidity 67.9 % 94 % 48 % 35 % (2008)
Barometer 29.99 in 30.04 in 29.92 in 30.34 in (2013) 29.61 in (2009)
Wind Speed 4 mph 10.7 mph 16.1 mph (2015)
Wind Gust 21.3 mph 24.2 mph (2015)
Precipitation 0.15 in 0.52 in (2015)
Weather ElementAverage
Visibility9.7 mi
Wind DirectionSSE (150 °)
Weather ElementTotal
Heating Degree Days18.4 (Base 18.3)
Cooling Degree Days7.9 (Base 18.3)
Growing Degree Days22.9 (Base 10)
Total Years on Record: 8
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