LEWISTOWN, MONTANA

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Elevation: 1279 meters Latitude: 47 02N Longitude: 109 28W

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DAILY WEATHER AVERAGE - 15 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-3.4 ^°C	1.4 ^°C	-9.2 ^°C	10.6 ^°C (2006)	-32.2 ^°C (2008)
Dewpoint	-9.5 ^°C	-6 ^°C	-13.9 ^°C	2 ^°C (2006)	-36.1 ^°C (2006)
Humidity	65.3 ^%	81 ^%	50.8 ^%		29 ^% (2006)
Barometer	1016.6 ^hPa	1022 ^hPa	1010.2 ^hPa	1039.3 ^hPa (2008)	991.5 ^hPa (2006)
Wind Speed	20.4 ^km/h	36.7 ^km/h		55.5 ^km/h (2006)
Wind Gust		51.3 ^km/h		81.4 ^km/h (2006)
Precipitation	1.78 ^mm			4.57 ^mm (1999)

Weather Element	Average
Visibility	15 ^km
Wind Direction	SSW (215.2 °)

Weather Element	Total
Heating Degree Days	22.2 (Base 18.3)

Total Years on Record: 21

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