Weather in Chelan in August

General weather information about Chelan

Average annual temperature is 11.7 °C

Absolute maximum temperature: 42.0 °C

Absolute minimum temperature: -12.3 °C

Number of sunny days: 236 days

Number of rainy days: 100 days

Number of snow days: 29 days

Look at detailed online map of Chelan

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

Chelan air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)8.29.314.726.332.733.736.842.032.724.513.17.6
Average daytime temperature (°C)2.53.18.214.426.227.832.633.025.517.47.93.8
Average temperature (°C)0.3-0.23.99.118.720.924.725.119.012.54.21.6
Average night temperature (°C)-1.5-2.70.64.611.714.617.719.014.58.61.50.1
Absolute minimum temperature (°C)-10.3-12.3-4.50.46.88.414.014.57.7-2.1-2.4-3.1

Chelan monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.015.014.013.011.09.08.0
Daylight mean duration (h)8.910.211.913.715.215.915.614.212.610.89.38.5
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.010.08.08.0
Sunshine mean duration (h)4.06.28.19.613.013.313.712.010.27.95.02.7
Precipitation (mm)5520312317147314315485
Sunny days131416181926302625192010
Rainy days96812124155121016
Snow days987000000005

Chelan - weather forecast by months

Chelan weather in januaryChelan weather in februaryChelan weather in marchChelan weather in aprilChelan weather in mayChelan weather in juneChelan weather in julyChelan weather in augustChelan weather in septemberChelan weather in octoberChelan weather in novemberChelan weather in december

Best time to visit Chelan:

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

  • May — 13.0(h)
  • June — 13.3(h)
  • July — 13.7(h)
  • August — 12.0(h)

Months with the longest average daylight duration in Chelan:

  • June — 15.9(h)
  • July — 15.6(h)

The largest precipitation sum in Chelan is at

  • January — 55(mm)
  • November — 54(mm)
  • December — 85(mm)

    • Weather forecast in the closest to Chelan admin centers

    Weather forecast in the closest towns to Chelan

    Explore Chelan

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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