February 2012 Climatic Summary
 
February temperatures were very close to average across the entire area this month. The South Dakota plains were 1 to 3 degrees above normal, while the Black Hills and locations across northeast Wyoming were 1 to 3 degrees below normal. The coolest location was Spearfish, which was 2.7 degrees below normal, while the warmest location was Winner, at 5.5 degrees above normal.
 
Precipitation in February averaged around 146 percent of normal across the entire area.  The wettest/snowiest areas were across northeast Wyoming, and over the northern Black Hills and Bear Lodge Mountains. Precipitation across these areas average 1 to 2 inches of liquid equivalent, which was 150 to 300 percent of normal. The driest areas were across the South Dakota plains, where 0.5 to 1 inch of precipitation fell. The exception was across central South Dakota, where a late February snowstorm dropped 6 to 15 inches of snow in many locations. Snowfall across the northern Black Hills and the Bear Lodge Mountains ranged from 15 to 40 inches. Lead reported 38 inches of snow for February.
 
February storm summary...
 
February 20th through 27th – A series of weak Alberta clippers crossed the state over the course of the week, bringing light amounts of snow to the area. The heaviest snows fell across the northern Black Hills and Bear Lodge mountains, where upslope enhancement produced several bouts of 4 to 8 inch snowfalls on various days.
 
February 28th and 29th – A strong low pressure system moved out of the central Rockies and into the northern plains. This storm system dumped 6 to 15 inches of snow across central South Dakota.

 

LOCAL EXTREMES
Rapid City
Lead
Gillette
Temperature
Temperature
Date
Temperature
Date
Temperature
Date
Max. Temp.
56
25th
44
5th & 25th
46
18th
Min. Temp.
-8
11th
-8
11th
-5
11th
Precipitation
Rapid City
Lead
Gillette
Monthly Data
Amount
Date
Amount
Date
Amount
Date
Precipitation
0.41
 
2.21
 
1.56
 
Snowfall
5.2
 
38.0
 
14.1
 
Daily Data
Amount
Date
Amount
Date
Amount
Date
Max. Precipitation
0.10
28th
0.45
26th
0.87
22nd
Max. Snowfall
2.1
28th
8.1
22nd
5.0
22nd

 

Return to Climate Summaries


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.