March 2008 Climatic Summary


March temperatures were near normal, averaging 0.6 degrees above normal. Spearfish was the warm spot averaging 2.7 degrees above normal. The cold spot was Pactola Dam where temperatures averaged 2.2 degrees below normal.
Precipitation in March was 20 to 30 percent below normal. The wettest areas were across southwest South Dakota and across Weston and southern Campbell county in northeast Wyoming, where precipitation averaged 125 to 175 percent of normal. The driest areas were across northwestern and west central South Dakota where precipitation was 25 to 50 percent of normal. The wet spot was Wright 12W in northeast Wyoming where precipitation was 185 percent of normal, while Colony in northeast Wyoming was the dry spot with only 18 percent of normal precipitation. The precipitation deficit for the month averaged 0.27 inches. Snowfall in March was 5 to15 percent above normal. Snowfall averaged 1.5 to 2.5 feet across the northern and central Black Hills and Bear Lodge mountains.  On the northeast Wyoming plains snow averaged 5 to 10 inches with 6 to 12 inches on the plains of western South Dakota and in the southern Black Hills.

March storm summary...

On March 4 low pressure moved across northeast Wyoming and southwest South Dakota. This storm brought 2 to 4 inches of snow to northeast Wyoming, southwest South Dakota and across the southern and central Black Hills. In the northern Black Hills 4 to 8 inches of snow fell.

On March 14 a fast moving storm brought 2 to 5 inches of snow to Weston county and the southern half of Campbell county in northeast Wyoming, and over southwestern South Dakota.

On March 16 an upper level storm system brought snow to northeast Wyoming and western South Dakota along and south of Interstate 90. The heaviest snows fell across southwest South Dakota and in the southern and central Black hills where 4 to 8 inches were reported. Elsewhere in western South Dakota and in northeast Wyoming 1 to 3 inches of snow were reported. No snow fell across northwest South Dakota.

On March 22 a fast moving storm brought 2 to 4 inches of snow to Weston county and the southern half of Campbell county in northeast Wyoming.

On March 26 a fast moving storm brought 3 to 6 inches of snow to northwest South Dakota and across northern portions of Campbell and Crook counties in northeast Wyoming, with 1 to 3 inches over the northern Black Hills and Bear Lodge Mountains.

On March 30 and 31 an upper level storm system brought widespread snow to western South Dakota and northeast Wyoming. The heaviest snows fell in the northern Black Hills and Bear Lodge mountains where 5 to 10 inches fell, and in south central South Dakota where 5 to 8 inches fell. Across northeast Wyoming, southwest South Dakota and the central plains of western South Dakota 3 to 5 inches fell. Little or no snow fell across northwest South Dakota.


LOCAL EXTREMES

Temperature Data Rapid City   Lead   Gillette  
  Temperature Date Temperature Date Temperature  Date
Maximum Temperature 73 degrees 1st 62 degrees 1st 62 degrees 1st
Minimum Temperature -2 degrees 7th -5 degrees 7th 6 degrees 5th
             
Precipitation Data Rapid City   Lead   Gillette  
Monthly  Data Amount Data Amount Date Amount Date
Precipitation 0.60 inches   2.26 inches   .90 inches  
Snowfall 8.7 inches   32.4 inches   7.2 inches  
             
Daily Data            
Maximum Precipitation 0.15 inches 30th,  31st 0.50 inches 28th 0.31 inches 31st
Maximum Snowfall 2.0 inches 31st 11.6 inches  28th 3.0 inches 31st


REGIONAL EXTREMES

Temperature Data   Western South Dakota     Northeastern Wyoming  
  Temperature Site Date Temperature Site Date
Maximum Temperature 76 degrees Wasta 2nd 67 degrees Colony 1st
 Minimum Temperature
-14 degrees Medicine Mtn. 7th -7 degrees Sundance 7th
             
Precipitation Data   Western South Dakota     Northeastern Wyoming  
Monthly Data Amount Site Date Amount Site Date
Maximum Precipitation 2.26 inches Lead   1.24 inches Upton 14ENE  
Minimum Precipitation 0.20 inches Ludlow 3SSE   0.15 inches Colony  
Maximum Snowfall 32.4 inches Lead   17.7 inches Upton 14ENE  
Minimum Snowfall 3.3 inches Shadehill Res.   2.5 inches Colony  
             
Daily Data            
Maximum Precipitation 0.70 inches Kirley 6N 27th 0.38 inches Hulett 28th
Maximum Snowfall 11.6 inches Lead 28th 5.0 inches Rockypoint 1N 27th


MONTHLY RECORDS

LOCATION DATE NEW RECORD OLD RECORD  DATE
    NO RECORDS SET    


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