Best year time to visit Cowlitz

General weather information about Cowlitz

Average annual temperature is 10.9 °C

Absolute maximum temperature: 37.6 °C

Absolute minimum temperature: -6.5 °C

Number of sunny days: 164 days

Number of rainy days: 200 days

Number of snow days: 1 day

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

Cowlitz air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.314.918.026.931.730.532.837.630.527.015.514.1
Average daytime temperature (°C)9.28.210.913.222.223.728.129.322.517.010.79.8
Average temperature (°C)5.13.55.07.614.715.619.020.615.411.16.26.3
Average night temperature (°C)2.00.61.24.18.89.611.714.410.77.23.23.5
Absolute minimum temperature (°C)-5.7-6.5-3.7-1.05.04.47.78.87.1-2.6-4.2-3.1

Cowlitz 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)9.110.311.913.615.015.715.414.112.610.99.48.7
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)3.34.46.56.110.911.713.011.48.16.44.93.0
Precipitation (mm)939111016945385167684131262
Sunny days6854192127211813148
Rainy days2519262612941012181623
Snow days010000000000

Cowlitz - weather forecast by months

Cowlitz weather in januaryCowlitz weather in februaryCowlitz weather in marchCowlitz weather in aprilCowlitz weather in mayCowlitz weather in juneCowlitz weather in julyCowlitz weather in augustCowlitz weather in septemberCowlitz weather in octoberCowlitz weather in novemberCowlitz weather in december

Best time to visit Cowlitz:

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

  • May — 10.9(h)
  • June — 11.7(h)
  • July — 13.0(h)
  • August — 11.4(h)

Months with the longest average daylight duration in Cowlitz:

  • June — 15.7(h)
  • July — 15.4(h)

The largest precipitation sum in Cowlitz is at

  • April — 169(mm)
  • November — 131(mm)
  • December — 262(mm)

    • Weather forecast in the closest to Cowlitz admin centers

    Weather forecast in the closest towns to Cowlitz

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    Frequently asked questions

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