National Weather Service Weather Forecast Office

 

August temperatures were near to slightly above average across the area this month. The average monthly temperature was 0.6 degrees above normal across the region. The location with the highest departure in August was Custer, with an average temperature of 3.9 degrees above normal. Newell had the coolest departure, at 1.1 degrees below average.

 

Precipitation in August averaged only 47 percent of normal across the entire area. The only locations that had near normal precipitation were Lemmon, Cottonwood, and Pactola Dam. On the dry end of the spectrum, Newcastle recorded 0.10 inches of rain, which was only 8 percent of average.

 

 

August 2^nd – An area of low pressure moved through the Northern Plains, producing severe thunderstorms from northeastern Wyoming through the Black Hills and across the South Dakota plains. Quarter to ping pong ball sized hail and wind gusts from 60 to 90 mph were reported from near Devil’s Tower, across the Black Hills, to Kadoka and Mission.

August 11^th – A weak cold front moved through eastern Wyoming and western South Dakota during the afternoon. Strong to severe storms developed in the afternoon and brought dime to quarter sized hail and wind gusts of 60 to 70 mph to portions of southwest South Dakota.

 

LOCAL EXTREMES	Rapid City		Lead		Gillette
Temperature	Temperature	Date	Temperature	Date	Temperature	Date
Max. Temp.	106	29th	94	29th	102	29th
Min. Temp.	51	16th	40	16th	39	25th
Precipitation	Rapid City		Lead		Gillette
Monthly Data	Amount	Date	Amount	Date	Amount	Date
Precipitation	0.38		2.27		0.39
Snowfall	0.0		0.0		0.0
Daily Data	Amount	Date	Amount	Date	Amount	Date
Max. Precipitation	0.27	11th	1.32	11th	0.34	11th
Max. Snowfall	0.0		0.0		0.0

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