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December Monthly Averages

Average High 

35.6º

Average Low 

12.7º

Average Daily Temperature 

24.2º

Warmest Recorded Temperature 

79º on
December 5, 1939

Coldest Recorded Temperature 

-30º on
December 30, 1990

Average Days With 
Lows Below Freezing 

30 days

Average Precipitation 
(liquid or melted snow) 

.46"

Average Number of Days 
With Precipitation 

6

Average Snowfall 

5.1" days

Average Number of Clear Days 

9 days

Average Number of Partly Cloudy Days 

8 days

Average Number of Cloudy Days 

14 days

Average Afternoon Humidity 

64%

Average Wind Speed 

10.6 mph
Click Here for December Daily Averages
January February March April May June July August September October November December Black Hills Monthly Weather Stats


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