JEFFERSON ISLAND, MONTANA

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Elevation: 1300 meters Latitude: 45 52N Longitude: 111 57W

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DAILY WEATHER AVERAGE - 19 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-8.6 ^°C	-0.9 ^°C	-16.4 ^°C	21 ^°C (1996)	-32.1 ^°C (1998)
Dewpoint	-12.5 ^°C	-7.7 ^°C	-18.7 ^°C	2 ^°C (1996)	-35.6 ^°C (1996)
Humidity	75.5 ^%	90 ^%	51.9 ^%		28 ^% (1996)
Barometer	1021.3 ^hPa	1027.1 ^hPa	1014.6 ^hPa	1038.3 ^hPa (2005)	989.5 ^hPa (2010)
Wind Speed	6.9 ^km/h	17.5 ^km/h		31.5 ^km/h (2008)
Wind Gust		36.7 ^km/h		40.7 ^km/h (2008)
Precipitation	7.11 ^mm			13.21 ^mm (2015)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	ESE (121.2 °)

Weather Element	Total
Heating Degree Days	27 (Base 18.3)

Total Years on Record: 21

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