Rapid City

How to get there

When to go

Best months: June, August, September

Month Avg high Avg low Rainfall
January -8° 10 mm
February -8° 21 mm
March 10° -3° 27 mm
April 14° 58 mm
May 20° 85 mm
June 28° 15° 68 mm
July 31° 18° 39 mm
August 30° 17° 40 mm
September 26° 13° 23 mm
October 17° 34 mm
November 10° -1° 15 mm
December -7° 25 mm

Averages for 2015-2024 from the ERA5 reanalysis. Highlighted months have an average high between 18 and 30 degrees and under 80 mm of rain.