MATANUSKA-SUSTINA BOROUGH, ALASKA

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Elevation: 125 feet Latitude: 62 53N Longitude: 149 50W

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DAILY WEATHER AVERAGE - DECEMBER 21

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	17.4 ^°F	20.7 ^°F	14.5 ^°F	32 ^°F (1999)	(2010)
Dewpoint	13.4 ^°F	16.3 ^°F	11.4 ^°F	32 ^°F (1999)	-4 ^°F (2010)
Humidity	79.9 ^%	90.5 ^%	68.8 ^%		40 ^% (2010)
Barometer	29.54 ⁱⁿ	29.61 ⁱⁿ	29.45 ⁱⁿ	30.68 ⁱⁿ (1998)	28.59 ⁱⁿ (2003)
Wind Speed	8.6 ^mph	14.1 ^mph		23 ^mph (2011)
Wind Gust		24.2 ^mph		26.5 ^mph (2003)
Precipitation	---			--- ()

Weather Element	Average
Visibility	16.5 ^mi
Wind Direction	S (181.6 °)

Weather Element	Total
Heating Degree Days	47.4 (Base 18.3)

Total Years on Record: 17

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