Best year time to visit Rainier

General weather information about Rainier

Average annual temperature is 10.4 °C

Absolute maximum temperature: 38.3 °C

Absolute minimum temperature: -13.0 °C

Number of sunny days: 157 days

Number of rainy days: 207 days

Number of snow days: 1 day

Look at detailed online map of Rainier

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

Rainier air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.312.716.627.630.329.833.338.331.026.115.214.2
Average daytime temperature (°C)7.96.79.612.320.922.427.128.822.016.710.29.4
Average temperature (°C)4.62.64.47.213.814.718.119.815.011.16.16.3
Average night temperature (°C)2.20.11.04.08.99.511.613.610.67.53.34.0
Absolute minimum temperature (°C)-5.4-13.0-3.3-1.15.35.39.09.86.9-1.1-3.9-1.3

Rainier monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.411.913.615.015.715.314.112.510.99.58.7
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)2.94.35.65.710.511.712.911.38.26.25.02.9
Precipitation (mm)1328513619033325257991149288
Sunny days6845172126191516128
Rainy days2519272514951215151823
Snow days010000000000

Rainier - weather forecast by months

Rainier weather in januaryRainier weather in februaryRainier weather in marchRainier weather in aprilRainier weather in mayRainier weather in juneRainier weather in julyRainier weather in augustRainier weather in septemberRainier weather in octoberRainier weather in novemberRainier weather in december

Best time to visit Rainier:

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

  • May — 10.5(h)
  • June — 11.7(h)
  • July — 12.9(h)
  • August — 11.3(h)

Months with the longest average daylight duration in Rainier:

  • June — 15.7(h)
  • July — 15.3(h)

The largest precipitation sum in Rainier is at

  • January — 132(mm)
  • March — 136(mm)
  • April — 190(mm)
  • November — 149(mm)
  • December — 288(mm)

    • Weather forecast in the closest to Rainier admin centers

    Weather forecast in the closest towns to Rainier

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    Frequently asked questions

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