Best year time to visit Montana

General weather information about Montana

Average annual temperature is 1.5 °C

Absolute maximum temperature: 25.0 °C

Absolute minimum temperature: -31.8 °C

Number of sunny days: 131 days

Number of rainy days: 148 days

Number of snow days: 86 days

Look at detailed online map of Montana

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

Montana air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.4-1.74.812.022.223.224.225.015.811.03.0-0.8
Average daytime temperature (°C)-4.1-5.2-0.64.113.216.319.418.911.95.5-1.3-8.4
Average temperature (°C)-7.1-8.7-6.0-1.67.512.015.014.67.51.1-4.3-12.1
Average night temperature (°C)-10.4-11.6-10.1-5.62.98.411.711.54.7-1.4-6.8-15.7
Absolute minimum temperature (°C)-21.5-21.4-20.4-13.3-2.14.08.08.7-0.9-6.8-23.6-31.8

Montana monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.016.019.019.019.017.014.011.08.05.0
Daylight mean duration (h)6.38.911.814.817.819.618.715.913.010.07.15.3
Daylight minimum duration (h)5.07.010.013.016.019.017.014.011.08.05.05.0
Sunshine mean duration (h)1.73.07.48.18.17.69.47.36.54.91.90.9
Precipitation (mm)424811436479141155124488273
Sunny days137201185137916814
Rainy days4106232518242114120
Snow days142011130000011017

Montana - weather forecast by months

Montana weather in januaryMontana weather in februaryMontana weather in marchMontana weather in aprilMontana weather in mayMontana weather in juneMontana weather in julyMontana weather in augustMontana weather in septemberMontana weather in octoberMontana weather in novemberMontana weather in december

Best time to visit Montana:

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

  • March — 7.4(h)
  • April — 8.1(h)
  • May — 8.1(h)
  • June — 7.6(h)
  • July — 9.4(h)
  • August — 7.3(h)

Months with the longest average daylight duration in Montana:

  • May — 17.8(h)
  • June — 19.6(h)
  • July — 18.7(h)
  • August — 15.9(h)

The largest precipitation sum in Montana is at

  • July — 141(mm)
  • August — 155(mm)
  • September — 124(mm)

    • Weather forecast in the closest to Montana admin centers

    Weather forecast in the closest towns to Montana

    Explore Montana

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    MapTrains schedule
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    Frequently asked questions

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