Best year time to visit Rapid City

General weather information about Rapid City

Average annual temperature is 9.2 °C

Absolute maximum temperature: 37.8 °C

Absolute minimum temperature: -27.3 °C

Number of sunny days: 230 days

Number of rainy days: 100 days

Number of snow days: 35 days

Look at detailed online map of Rapid City

* Weather data for Rapid City United States is based on climate observations for 2026 year

Rapid City air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.515.818.726.027.730.534.437.836.326.421.617.4
Average daytime temperature (°C)3.04.94.711.622.024.728.629.024.414.510.66.6
Average temperature (°C)-2.0-2.0-1.94.815.719.022.022.317.98.34.20.9
Average night temperature (°C)-5.6-7.2-6.5-0.89.713.615.516.712.43.6-0.6-3.1
Absolute minimum temperature (°C)-20.8-27.3-12.4-13.3-0.38.79.611.38.8-10.2-9.1-7.0

Rapid City monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.310.511.913.514.815.415.114.012.511.09.78.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)5.87.98.110.411.712.113.311.110.38.57.76.6
Precipitation (mm)2622333910310322655169322
Sunny days17181620159211922222625
Rainy days7526162110128823
Snow days7513400000123

Rapid City - weather forecast by months

Rapid City weather in januaryRapid City weather in februaryRapid City weather in marchRapid City weather in aprilRapid City weather in mayRapid City weather in juneRapid City weather in julyRapid City weather in augustRapid City weather in septemberRapid City weather in octoberRapid City weather in novemberRapid City weather in december

Best time to visit Rapid City:

The best time to visit Rapid City during the most sunny months:

  • June — 12.1(h)
  • July — 13.3(h)

Months with the longest average daylight duration in Rapid City:

  • June — 15.4(h)

The largest precipitation sum in Rapid City is at

  • May — 103(mm)
  • June — 103(mm)
  • August — 65(mm)
  • October — 69(mm)

    • Weather forecast in the closest to Rapid City admin centers

    Weather forecast in the closest towns to Rapid City

    Explore Rapid City

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

    When is the best time to visit Rapid City?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Rapid City.
    What is the weather like in Rapid City?
    See average temperature, rainfall and daylight hours for Rapid City by month in the table above.
    How many sunny days does Rapid City have?
    The monthly weather statistics above show sunshine and rainfall patterns for Rapid City throughout the year.