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National Weather Service Weather Forecast Office

Rapid City, SD

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February temperatures were slightly below normal, averaging 1 to 2 degrees below normal. Sundance, in northeast Wyoming, was the warm spot averaging 0.8 degrees above normal. The cold spot was Newell where temperatures averaged 5.2 degrees below normal.
Precipitation in January was near normal. The wettest areas were across the Black Hills and northeast Wyoming where precipitation averaged 125 to175 percent of
normal. The driest areas were across the plains of western South Dakota where precipitation was 50 to 75 percent of normal, and several locations saw less than
30 percent of normal precipitation. The wet spot was at Wright 12W in northeast Wyoming where precipitation was 200 percent of normal, while Ardmore 2N was
the dry spot with only 15 percent of normal precipitation. The precipitation surplus for the month averaged 0.03 inches.
Snowfall in February was 15 to 25 percent above normal.  Snowfall averaged 2 to 3 feet across the northern Black Hills and Bear Lodge mountains.  On the northeast Wyoming plains snow averaged 6 to 12 inches with 3 to 8 inches on the plains of western South Dakota and in the southern and central Black Hills.

February storm summary...

On February 3 and 4 a low pressure system moved across the region bringing snow to western South Dakota and northeast Wyoming mainly north of I-90, where snowfall
averaged 2 to 4 inches.

On February 9 through 11 a series of upper level disturbance brought periodic snow to the region. The heaviest snows occurred in the northern Black Hills where 8 to 16 inches fell with 5 to 10 inches in the Bear Lodge mountains. On the South Dakota plains northwestern and south central areas saw 3 to 6 inches, with less than 2 inches on the central plains and across the southern and central Black Hills and southwestern areas.

On February 13 a weak storm system brought 1 to 3 inches of snow to northeast Wyoming and the northern Black Hills.

On February 17 and 18 an upper level storm system brought 10 to 15 inches of snow to the northern Black Hills and Bear Lodge mountains, with 1 to 3 inches on the plains of northeast Wyoming. Elsewhere in the Black Hills and on the South Dakota plains snowfall was an inch or less.

On February 24 and 25 another upper level storm system brought 3 to 5 inches of snow to the northern Black Hills and Bear Lodge mountains, with less than an inch falling on the southern and central Black Hills, and on the plains of northeast Wyoming and western South Dakota.

LOCAL EXTREMES

Temperature Data	Rapid City		Lead		Gillette
	Temperature	Date	Temperature	Date	Temperature	Date
Maximum Temperature	56 degrees	28th	48 degrees	22nd, 23rd	50 degrees	29th
Minimum Temperature	-1 degrees	5th, 9th, 10th	-10 degrees	10th	-5 degrees	10th
Precipitation Data	Rapid City		Lead		Gillette
Monthly  Data	Amount	Data	Amount	Date	Amount	Date
Precipitation	0.51 inches		2.17 inches		0.61 inches
Snowfall	6.2 inches		41.9 inches		7.0 inches
Daily Data
Maximum Precipitation	0.24 inches	11th	0.65 inches	11th	0.26 inches	28th
Maximum Snowfall	2.4 inches	11th	12.0 inches	11th	3.0 inches	4th

REGIONAL EXTREMES

Temperature Data		Western South Dakota			Northeastern Wyoming
	Temperature	Site	Date	Temperature	Site	Date
Maximum Temperature	58 degrees 58 degrees	Ardmore 2N Winner	29th 29th	52 degrees	Colony	29th
Minimum Temperature	-18 degrees	Hoover	6th	-14 degrees	Devil's Tower	5th
Precipitation Data		Western South Dakota			Northeastern Wyoming
Monthly Data	Amount	Site	Date	Amount	Site	Date
Maximum Precipitation	2.17 inches	Lead		1.02 inches	Devil's Tower
Minimum Precipitation	0.08 inches	Ardmore 2N		0.36 inches	Dillinger
Maximum Snowfall	41.9 inches	Lead
Minimum Snowfall	1.3 inches	Edgemont
Daily Data
Maximum Precipitation	0.66 inches	Deadwood 2NE	11th	0.31 inches	Devil's Tower	4th
Maximum Snowfall	12.0 inches	Lead	11th	4.5 inches	Upton 14ENE	12th

MONTHLY RECORDS

LOCATION	DATE	NEW RECORD		OLD RECORD		DATE
		NO RECORDS SET

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