FORT SULLY, SOUTH DAKOTA

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Elevation: 503 meters Latitude: 44 38N Longitude: 100 27W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-8.8 ^°C	-4.8 ^°C	-13 ^°C	5.8 ^°C (1997)	-22.8 ^°C (2013)
Dewpoint	-11.1 ^°C	-7.9 ^°C	-14.7 ^°C	-2.1 ^°C (1997)	-23.9 ^°C (1997)
Humidity	84.6 ^%	93.4 ^%	72.9 ^%		57 ^% (1997)
Barometer	1017.9 ^hPa	1023 ^hPa	1013.2 ^hPa	1035.9 ^hPa (1998)	1001.4 ^hPa (1996)
Wind Speed	12.1 ^km/h	23.8 ^km/h		29.6 ^km/h (2015)
Precipitation	---			--- ()

Weather Element	Average
Visibility	20.4 ^km
Wind Direction	SSE (152 °)

Weather Element	Total
Heating Degree Days	27.2 (Base 18.3)

Total Years on Record: 7

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