GREENBELT, MARYLAND

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Elevation: 120 feet Latitude: 39 02N Longitude: 076 53W

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DAILY WEATHER AVERAGE - DECEMBER 23

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	45.6 ^°F	54.8 ^°F	35.1 ^°F	82.4 ^°F (2006)	17.6 ^°F (2008)
Dewpoint	35.4 ^°F	46.5 ^°F	25 ^°F	75.2 ^°F (2006)	3.2 ^°F (2008)
Humidity	71.1 ^%	89.3 ^%	47.6 ^%		30 ^% (2008)
Barometer	30.09 ⁱⁿ	30.23 ⁱⁿ	29.96 ⁱⁿ	30.74 ⁱⁿ (2008)	29.73 ⁱⁿ (2007)
Wind Speed	5.3 ^mph	12.8 ^mph		21.9 ^mph (2010)
Wind Gust		25.5 ^mph		32.2 ^mph (2010)
Precipitation	---			--- ()

Weather Element	Average
Visibility	8 ^mi
Wind Direction	S (175.7 °)

Weather Element	Total
Heating Degree Days	20.1 (Base 18.3)
Growing Degree Days	6.3 (Base 10)

Total Years on Record: 8

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