Best year time to visit Yellowstone Park

General weather information about Yellowstone Park

Average annual temperature is 12.2 °C

Absolute maximum temperature: 34.0 °C

Absolute minimum temperature: -17.7 °C

Number of sunny days: 165 days

Number of rainy days: 193 days

Number of snow days: 7 days

Look at detailed online map of Yellowstone Park

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

Yellowstone Park air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.119.215.030.628.232.132.930.734.027.718.916.2
Average daytime temperature (°C)7.77.49.517.620.824.929.227.023.718.910.58.7
Average temperature (°C)3.92.54.511.815.019.323.822.019.014.05.64.4
Average night temperature (°C)0.8-1.50.37.29.614.819.617.715.310.01.61.2
Absolute minimum temperature (°C)-4.1-17.7-3.4-0.55.19.715.014.18.84.8-4.5-6.1

Yellowstone Park 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)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.76.47.58.612.010.411.49.97.57.47.04.9
Precipitation (mm)12949126139529319810425411466223
Sunny days1316131320961014171816
Rainy days171015171121252116141214
Snow days123000000001

Yellowstone Park - weather forecast by months

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

Best time to visit Yellowstone Park:

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

  • May — 12.0(h)
  • June — 10.4(h)
  • July — 11.4(h)

The largest precipitation sum in Yellowstone Park is at

  • July — 198(mm)
  • September — 254(mm)
  • December — 223(mm)

    • Weather forecast in the closest to Yellowstone Park admin centers

    Weather forecast in the closest towns to Yellowstone Park

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    Frequently asked questions

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