YELLOWSTONE NATIONAL PARK, WYOMING

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Elevation: 2420 meters Latitude: 44 34N Longitude: 110 24W

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DAILY WEATHER AVERAGE - 15 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-9.2 ^°C	-5.7 ^°C	-14.6 ^°C	1.7 ^°C (2006)	-23.9 ^°C (2007)
Dewpoint	-11.8 ^°C	-8.6 ^°C	-16.9 ^°C	-0.6 ^°C (2006)	-26.7 ^°C (2010)
Humidity	81.5 ^%	90.5 ^%	69.1 ^%		60 ^% (2010)
Barometer	1021.3 ^hPa	1027.8 ^hPa	1015.6 ^hPa	1040 ^hPa (1999)	999.7 ^hPa (2006)
Wind Speed	5.6 ^km/h	13.4 ^km/h		27.8 ^km/h (2006)
Wind Gust		37.7 ^km/h		51.8 ^km/h (2006)
Precipitation	13.46 ^mm			89.41 ^mm (2010)

Weather Element	Average
Visibility	9.7 ^km
Wind Direction	E (93.9 °)

Weather Element	Total
Heating Degree Days	28.4 (Base 18.3)

Total Years on Record: 21

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