Best year time to visit Iowa

General weather information about Iowa

Average annual temperature is 21.8 °C

Absolute maximum temperature: 41.5 °C

Absolute minimum temperature: 0.5 °C

Number of sunny days: 144 days

Number of rainy days: 221 days

Look at detailed online map of Iowa

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

Iowa air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)24.327.228.529.733.035.537.541.536.935.029.125.2
Average daytime temperature (°C)19.420.423.624.829.733.633.637.034.028.221.318.6
Average temperature (°C)14.615.218.619.824.528.429.231.528.222.516.013.2
Average night temperature (°C)11.011.314.615.519.924.325.427.123.418.012.09.0
Absolute minimum temperature (°C)0.61.20.59.013.820.122.423.519.78.53.91.1

Iowa monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.311.410.610.2
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)6.57.78.48.810.311.312.312.110.78.76.97.7
Precipitation (mm)18023192113124558218312767125
Sunny days118998941614181721
Rainy days202022212321271516131310
Snow days000000000000

Iowa - weather forecast by months

Iowa weather in januaryIowa weather in februaryIowa weather in marchIowa weather in aprilIowa weather in mayIowa weather in juneIowa weather in julyIowa weather in augustIowa weather in septemberIowa weather in octoberIowa weather in novemberIowa weather in december

Best time to visit Iowa:

The best time to visit Iowa during the most sunny months:

  • July — 12.3(h)
  • August — 12.1(h)

The largest precipitation sum in Iowa is at

  • January — 180(mm)
  • February — 231(mm)
  • May — 124(mm)
  • December — 125(mm)

    • Weather forecast in the closest to Iowa admin centers

    Weather forecast in the closest towns to Iowa

    Explore Iowa

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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