UPPER MARLBORO, MARYLAND

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Elevation: 93 feet Latitude: 38 52N Longitude: 076 47W

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DAILY WEATHER AVERAGE - DECEMBER 17

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	39.9 ^°F	47.6 ^°F	31.7 ^°F	65.1 ^°F (2006)	19.4 ^°F (2010)
Dewpoint	30.5 ^°F	36 ^°F	23.8 ^°F	60.8 ^°F (2000)	10 ^°F (1997)
Humidity	72.1 ^%	89.6 ^%	53.6 ^%		22 ^% (1997)
Barometer	30.05 ⁱⁿ	30.19 ⁱⁿ	29.92 ⁱⁿ	30.54 ⁱⁿ (2005)	29.37 ⁱⁿ (2000)
Wind Speed	8.7 ^mph	16 ^mph		36.8 ^mph (2000)
Wind Gust		28 ^mph		50.6 ^mph (2000)
Precipitation	0.13 ⁱⁿ			0.23 ⁱⁿ (2015)

Weather Element	Average
Visibility	7.2 ^mi
Wind Direction	SW (221.5 °)

Weather Element	Total
Heating Degree Days	25.3 (Base 18.3)
Growing Degree Days	1.2 (Base 10)

Total Years on Record: 21

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