Best year time to visit Mill Plain

General weather information about Mill Plain

Average annual temperature is 12.4 °C

Absolute maximum temperature: 33.6 °C

Absolute minimum temperature: -18.4 °C

Number of sunny days: 170 days

Number of rainy days: 189 days

Number of snow days: 6 days

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

Mill Plain air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.918.214.728.627.427.232.129.033.625.618.715.1
Average daytime temperature (°C)7.67.19.116.219.723.128.126.023.518.710.98.7
Average temperature (°C)4.12.84.711.314.818.723.922.019.414.56.35.1
Average night temperature (°C)1.1-1.20.87.210.014.620.318.615.910.92.52.1
Absolute minimum temperature (°C)-3.3-18.4-3.3-1.25.28.815.914.810.35.2-3.4-5.2

Mill Plain 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)4.96.67.58.812.411.011.510.17.77.77.45.4
Precipitation (mm)13955131178766618016321710055219
Sunny days1117141222981013161919
Rainy days1991518921232117151012
Snow days122000000010

Mill Plain - weather forecast by months

Mill Plain weather in januaryMill Plain weather in februaryMill Plain weather in marchMill Plain weather in aprilMill Plain weather in mayMill Plain weather in juneMill Plain weather in julyMill Plain weather in augustMill Plain weather in septemberMill Plain weather in octoberMill Plain weather in novemberMill Plain weather in december

Best time to visit Mill Plain:

The best time to visit Mill Plain during the most sunny months:

  • May — 12.4(h)
  • June — 11.0(h)
  • July — 11.5(h)

The largest precipitation sum in Mill Plain is at

  • April — 178(mm)
  • July — 180(mm)
  • September — 217(mm)
  • December — 219(mm)

    • Weather forecast in the closest to Mill Plain admin centers

    Weather forecast in the closest towns to Mill Plain

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    Frequently asked questions

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