February 2013 Climatic Summary
 
February temperatures across the entire region were around 2 degrees above average for the month. Locations across Northeast Wyoming, the Black Hills, and south central South Dakota were near average, while the northwestern and west central South Dakota plains were well above average due to the lack of snow cover. The location with the coolest departure from average was Pactola Reservoir, which was -0.7 degrees below normal, while the location with the warmest departure was Dupree, at 6.1 degrees above normal.
 
Precipitation in February averaged around 64 percent of normal across the entire area.  The wettest and snowiest areas were over the northern Black Hills and Bear Lodge Mountains, and across south central portions of South Dakota, where 100 to 160 percent of normal precipitation was reported. The driest areas were across the northwestern and west central South Dakota plains, where precipitation averaged 5 to 30 percent of normal. Opal reported only 0.03 inches of precipitation for the month, which was only 5% of average for February. South central South Dakota received 6 to 12 inches of snowfall for the month. This equated to 2/3 to a little over an inch of precipitation for the area.
 
Snowfall was the heaviest over the northern Black Hills into the Bear Lodge Mountains where 1 to 3 feet of snow fell during February. Sundance reported 0.78 inches of precipitation, and 17.2 inches of snow. Lead reported 1.98 inches of precipitation, and 29.1 inches of snow this month.
 
February storm summary...
 
February 2nd – A tight pressure gradient produced 45 to 65 mph northwest winds across the northwest and west central plains of South Dakota.
 
February 10th – A strong low pressure system moved out of the Central Rockies and into the Central Plains, bringing snow to south central South Dakota and the northern Black Hills. Many locations across south central South Dakota received 3 to 8 inches of snow, while 4 to 12 inches of snow fell across the northern Black Hills area.
 
LOCAL EXTREMES
Rapid City
Lead
Gillette
Temperature
Temperature
Date
Temperature
Date
Temperature
Date
Max. Temp.
56
3rd
47
3rd, 4th
48
3rd
Min. Temp.
7
1st
2
19th
1
19th
Precipitation
Rapid City
Lead
Gillette
Monthly Data
Amount
Date
Amount
Date
Amount
Date
Precipitation
0.26
 
1.98
 
0.58
 
Snowfall
3.6
 
29.1
 
6.2
 
Daily Data
Amount
Date
Amount
Date
Amount
Date
Max. Precipitation
0.14
10th
0.72
10th
0.15
24th
Max. Snowfall
1.7
10th
11.2
10th
2.0
24th

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