WASHINGTON - MCMILLAN RESERVOIR, DISTRICT OF COLUMBIA

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Elevation: 23 feet Latitude: 38 56N Longitude: 077 01W

WEATHER

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DAILY WEATHER AVERAGE - DECEMBER 21

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	43.3 ^°F	51.7 ^°F	35.4 ^°F	72 ^°F (2013)	23 ^°F (2009)
Dewpoint	33.1 ^°F	41.4 ^°F	25.8 ^°F	60.8 ^°F (2013)	-0.4 ^°F (2008)
Humidity	69.9 ^%	90.9 ^%	51.4 ^%		23 ^% (2008)
Barometer	30.04 ⁱⁿ	30.15 ⁱⁿ	29.96 ⁱⁿ	30.44 ⁱⁿ (2015)	29.26 ⁱⁿ (2012)
Wind Speed	4.4 ^mph	10.7 ^mph		23 ^mph (2008)
Wind Gust		23.6 ^mph		34.5 ^mph (2008)
Precipitation	---			--- ()

Weather Element	Average
Visibility	9.6 ^mi
Wind Direction	SE (140.4 °)

Weather Element	Total
Heating Degree Days	21.4 (Base 18.3)
Growing Degree Days	8.9 (Base 10)

Total Years on Record: 10

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