Best year time to visit Idaho

General weather information about Idaho

Average annual temperature is 4.0 °C

Absolute maximum temperature: 32.7 °C

Absolute minimum temperature: -22.8 °C

Number of sunny days: 178 days

Number of rainy days: 108 days

Number of snow days: 79 days

Look at detailed online map of Idaho

* 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)1.83.52.515.621.823.632.732.125.520.711.05.2
Average daytime temperature (°C)-4.6-2.1-2.53.915.517.827.925.119.512.75.60.1
Average temperature (°C)-8.9-7.4-6.6-0.49.411.919.417.411.85.7-0.7-4.7
Average night temperature (°C)-11.7-11.3-10.0-4.03.56.610.910.45.40.2-5.1-9.0
Absolute minimum temperature (°C)-22.8-18.4-15.1-11.4-3.4-2.76.83.8-0.7-11.9-12.3-21.1

Idaho 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)9.310.511.913.514.815.515.114.012.511.09.68.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)6.38.27.810.712.711.913.511.610.78.66.95.8
Precipitation (mm)22166343514864239371729
Sunny days1514615107201617172120
Rainy days001221231115131264
Snow days1614241300000237

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 — 12.7(h)
  • July — 13.5(h)

Months with the longest average daylight duration in Idaho:

  • June — 15.5(h)

The largest precipitation sum in Idaho is at

  • March — 63(mm)
  • May — 51(mm)
  • June — 48(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.