Monthly Temperature Averages and Climate for Rapid City, SD

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Rapid City, SD has a longitude of -103.1 degrees and a latitude of 44.1 degrees.

Rapid City, SD has temperatures that can go as high as 78.4 °F in June, 87.4 °F in July, and 85.8 °F in August. The hottest month is typically July.

Rapid City, SD also has temperatures that can go as low as 14.4 °F in December, 12.6 °F in January, and 16.0 °F in February. The coldest month is typically January.

The wettest month for Rapid City, SD is May with 8.1 inches of rain.

The annual weather and monthly temperature averages for highs and lows are presented in the table below. The weather values used to interpolate these values are provided by the US NAOO weather station values from the last 10 years.

JanFebMarAprMayJunJulAugSepOctNovDec
Average High (°F)37.439.248.058.667.878.487.485.876.660.648.037.4
Average Low (°F)12.616.023.232.242.952.059.257.446.834.223.414.4
Average Precipitation (in)1.01.02.05.08.15.04.14.14.02.11.01.0
Tree Graphic for climate page specific to city and state for annual weather site

South Dakota has a continental climate with four distinct seasons, ranging from cold, dry winters to warm and semi-humid summers. It is not unusual for South Dakota to have severe hot, dry spells in the summer. Average annual precipitation in South Dakota ranges from semi-arid conditions in the northwestern part of the state (around 15 inches or 380 mm) to semi-humid around the southeast portion of the state (around 25 inches or 640 mm). South Dakota summers bring frequent, sometimes severe, thunderstorms with high winds, thunder, and hail.

In reality, each climate is unique and finding one that is suitable can be a real challenge! We hope that the information here can be the starting point of your weather and climate research for your next vacation or potentially next home.

We hope you use this information to make your travel plans to Rapid City, SD or decide if living in the Rapid City climate is the right choice for you!

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