Best year time to visit Sioux Falls

General weather information about Sioux Falls

Average annual temperature is 9.2 °C

Absolute maximum temperature: 37.6 °C

Absolute minimum temperature: -24.3 °C

Number of sunny days: 219 days

Number of rainy days: 116 days

Number of snow days: 30 days

Look at detailed online map of Sioux Falls

* Weather data for Sioux Falls United States is based on climate observations for 2026 year

Sioux Falls air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)1.63.910.127.431.633.836.137.635.831.217.710.8
Average daytime temperature (°C)-5.1-2.11.814.224.228.528.329.326.215.69.34.7
Average temperature (°C)-7.9-7.2-3.57.517.622.722.423.320.310.63.80.0
Average night temperature (°C)-10.7-11.1-7.42.311.717.217.018.315.26.6-0.5-3.2
Absolute minimum temperature (°C)-24.3-24.0-16.0-6.31.39.511.112.78.9-6.8-9.4-7.7

Sioux Falls 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)9.410.511.913.414.715.415.113.912.511.09.79.0
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.97.47.39.211.912.712.511.79.97.37.25.2
Precipitation (mm)513835536867487745114156
Sunny days201917181714182113152621
Rainy days2451014161310171537
Snow days959200000113

Sioux Falls - weather forecast by months

Sioux Falls weather in januarySioux Falls weather in februarySioux Falls weather in marchSioux Falls weather in aprilSioux Falls weather in maySioux Falls weather in juneSioux Falls weather in julySioux Falls weather in augustSioux Falls weather in septemberSioux Falls weather in octoberSioux Falls weather in novemberSioux Falls weather in december

Best time to visit Sioux Falls:

The best time to visit Sioux Falls during the most sunny months:

  • May — 11.9(h)
  • June — 12.7(h)
  • July — 12.5(h)
  • August — 11.7(h)

Months with the longest average daylight duration in Sioux Falls:

  • June — 15.4(h)

The largest precipitation sum in Sioux Falls is at

  • August — 77(mm)
  • October — 114(mm)

    • Weather forecast in the closest to Sioux Falls admin centers

    Weather forecast in the closest towns to Sioux Falls

    Explore Sioux Falls

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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