ROCKY BOY, MONTANA

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Elevation: 1207 meters Latitude: 48 15N Longitude: 109 47W

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DAILY WEATHER AVERAGE - 16 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-4.6 ^°C	1 ^°C	-11.1 ^°C	11.7 ^°C (2002)	-31.1 ^°C (2000)
Dewpoint	-9.9 ^°C	-6.3 ^°C	-14.2 ^°C	0.6 ^°C (1998)	-35.6 ^°C (2002)
Humidity	70 ^%	85.5 ^%	54 ^%		29 ^% (2002)
Barometer	1016.9 ^hPa	1023 ^hPa	1011.2 ^hPa	1041 ^hPa (2000)	989.5 ^hPa (2002)
Wind Speed	18.7 ^km/h	34.4 ^km/h		66.6 ^km/h (2001)
Wind Gust		56.2 ^km/h		77.7 ^km/h (2001)
Precipitation	33.78 ^mm			66.8 ^mm (2010)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	SSW (196 °)

Weather Element	Total
Heating Degree Days	23.4 (Base 18.3)

Total Years on Record: 21

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