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United States of America

HERNDON, VIRGINIA


Home > North America > United States > Virginia
Elevation: 322 feet     Latitude: 38 57N     Longitude: 077 27W

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DAILY WEATHER AVERAGE - APRIL 15
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 55.5 °F 66.2 °F 44.7 °F 84 °F (2003) 28.9 °F (1997)
Dewpoint 41.4 °F 47.1 °F 33.8 °F 63 °F (2002) 17.6 °F (2005)
Humidity 63.8 % 85.8 % 40.2 % 21 % (2005)
Barometer 30.02 in 30.15 in 29.88 in 30.49 in (2005) 29.23 in (2007)
Wind Speed 7.8 mph 15.4 mph 32.2 mph (2007)
Wind Gust 26.9 mph 43.7 mph (2007)
Precipitation 1.05 in 3.11 in (2007)
Weather ElementAverage
Visibility9.4 mi
Wind DirectionS (176.4 °)
Weather ElementTotal
Heating Degree Days13 (Base 18.3)
Cooling Degree Days5.2 (Base 18.3)
Growing Degree Days10 (Base 10)
Total Years on Record: 21
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