Best year time to visit Yellowstone

General weather information about Yellowstone

Average annual temperature is 5.5 °C

Absolute maximum temperature: 28.4 °C

Absolute minimum temperature: -28.7 °C

Number of sunny days: 170 days

Number of rainy days: 139 days

Number of snow days: 56 days

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* Weather data for Yellowstone Canada is based on climate observations for 2026 year

Yellowstone air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.85.59.719.527.828.427.827.323.420.79.77.1
Average daytime temperature (°C)-3.3-3.4-1.010.321.722.422.722.618.510.43.82.1
Average temperature (°C)-6.5-8.1-7.14.114.916.817.417.013.15.4-0.2-2.2
Average night temperature (°C)-9.1-11.2-10.9-0.79.312.213.512.68.71.8-2.8-5.3
Absolute minimum temperature (°C)-21.0-28.7-19.6-4.94.96.18.97.62.8-9.5-9.6-10.9

Yellowstone monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.012.015.016.017.016.015.013.011.09.07.0
Daylight mean duration (h)8.19.811.914.015.917.016.514.812.710.68.67.5
Daylight minimum duration (h)7.08.010.013.015.016.015.013.011.09.07.07.0
Sunshine mean duration (h)4.54.98.310.512.711.612.010.89.56.55.54.1
Precipitation (mm)12208335418420396332156
Sunny days1782013141041114192020
Rainy days541121720272016746
Snow days91610500000565

Yellowstone - weather forecast by months

Yellowstone weather in januaryYellowstone weather in februaryYellowstone weather in marchYellowstone weather in aprilYellowstone weather in mayYellowstone weather in juneYellowstone weather in julyYellowstone weather in augustYellowstone weather in septemberYellowstone weather in octoberYellowstone weather in novemberYellowstone weather in december

Best time to visit Yellowstone:

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

  • May — 12.7(h)
  • June — 11.6(h)
  • July — 12.0(h)
  • August — 10.8(h)

Months with the longest average daylight duration in Yellowstone:

  • May — 15.9(h)
  • June — 17.0(h)
  • July — 16.5(h)

The largest precipitation sum in Yellowstone is at

  • June — 184(mm)
  • July — 203(mm)
  • August — 96(mm)

    • Weather forecast in the closest to Yellowstone admin centers

    Weather forecast in the closest towns to Yellowstone

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    Frequently asked questions

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