Best year time to visit Idaho

General weather information about Idaho

Average annual temperature is 11.1 °C

Absolute maximum temperature: 31.9 °C

Absolute minimum temperature: -13.2 °C

Number of sunny days: 140 days

Number of rainy days: 210 days

Number of snow days: 15 days

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

Idaho air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.919.619.126.829.331.930.631.531.726.417.215.6
Average daytime temperature (°C)6.19.58.917.520.824.327.126.022.716.810.07.4
Average temperature (°C)2.32.93.310.614.318.421.720.417.412.24.93.7
Average night temperature (°C)-0.6-2.1-1.14.97.913.017.215.913.08.30.80.7
Absolute minimum temperature (°C)-7.3-13.2-8.4-3.50.66.813.210.67.3-0.4-7.8-5.9

Idaho monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.711.913.314.415.014.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)2.76.56.28.410.310.711.210.78.86.06.73.7
Precipitation (mm)124661075657129118128601054982
Sunny days51391519114111214189
Rainy days201318151219272018171120
Snow days624000000012

Idaho - weather forecast by months

Idaho weather in januaryIdaho weather in februaryIdaho weather in marchIdaho weather in aprilIdaho weather in mayIdaho weather in juneIdaho weather in julyIdaho weather in augustIdaho weather in septemberIdaho weather in octoberIdaho weather in novemberIdaho weather in december

Best time to visit Idaho:

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

  • May — 10.3(h)
  • June — 10.7(h)
  • July — 11.2(h)
  • August — 10.7(h)

The largest precipitation sum in Idaho is at

  • January — 124(mm)
  • June — 129(mm)
  • July — 118(mm)
  • August — 128(mm)

    • Weather forecast in the closest to Idaho admin centers

    Weather forecast in the closest towns to Idaho

    Explore Idaho

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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