December 2013 Climatic Summary
 
December temperatures across the entire region were 5.6 degrees below average for the month. Lead and Custer were the closest to normal, at 1 to 2 degrees below average for December. Interior was 10 degrees below normal for the month.
 
Precipitation in December averaged around 150 percent of normal across the entire area. Northwestern South Dakota was the wettest/snowiest area for December. Camp Crook was 350% above average with 1.02 inches of precipitation. Wright, WY only received 0.30 inches of precipitation, which was only 65% of normal. Newell received the most precipitation in December, with 1.21 inches.
 
Snowfall averaged about 170% of normal across the area. Most locations across the plains received 5 to 10 inches of snow. Both Bison and Lead received 16.3 inches of snow for December. For Bison, that was 450% above average. But for Lead, it was only 60% of average. Camp Crook received the most snow for December, with 17.8 inches.
 
December storm summary...
 
December 3rd - 4th – A strong weather system crossed the Northern Plains, producing 3 to 10 inches of snow from Northeast Wyoming through Northwest South Dakota.
 
December 19th – Another weather system crossed the area, bringing 2 to 6 inches of snow to Northeast Wyoming and southwestern South Dakota.
 
December 28th – A clipper system followed by arctic high pressure produced windy conditions across the South Dakota plains. Wind gusts of 50 to 70 mph were reported.
 
 
LOCAL EXTREMES
Rapid City
Lead
Gillette
Temperature
Temperature
Date
Temperature
Date
Temperature
Date
Max. Temp.
59
18th
52
18th, 28th
53
18th
Min. Temp.
-12
6th
-14
6th
-20
6th
Precipitation
Rapid City
Lead
Gillette
Monthly Data
Amount
Date
Amount
Date
Amount
Date
Precipitation
0.54
 
1.12
 
0.59
 
Snowfall
9.2
 
16.3
 
7.1
 
Daily Data
Amount
Date
Amount
Date
Amount
Date
Max. Precipitation
0.33
19th
0.22
24th
0.17
19th
Max. Snowfall
5.2
19th
5.0
10th
2.0
19th, 24th

  Return to Climate Summaries


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