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Chelan (WA) Weather and Climate: A Comprehensive Guide

The temperature in Chelan can vary greatly throughout the year. The temperatures shift from very warm to very cold. It maintains relatively low levels of precipitation throughout the seasons. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from very warm to very cold in Chelan. On average, daytime temperatures range from a very warm 30°C in July to a very cold 1°C in December.

Nighttime temperatures can drop, with average lows reaching -4°C in December. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

With annual rain/snowfall averaging 312 mm, Chelan maintains relatively low precipitation levels throughout the seasons. The seasons in Chelan, bring significant changes in precipitation. The wettest month, December, receives moderate snowfall, with an average of 57 mm of precipitation. This snowfall is distributed across 13 snowy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 7.5 mm over 4 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Chelan Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Chelan (WA)

Fri   Dec 27
2°C | -1°C
SE 2 m/s
5.4 mm
overcast and sleet

overcast and sleet

Sat   Dec 28
5°C | -1°C
SW 2 m/s
3.7 mm
broken clouds and slight sleet

broken clouds and slight sleet

Sun   Dec 29
2°C | -2°C
NE 1 m/s
4 mm
overcast and snow

overcast and snow

The best time of year to visit Chelan in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Chelan?
    The hottest season / summer takes place in June, July, August and September.
  • Does Chelan have a dry season?
    Yes, the months of April, June, July, August and September are very dry.
  • Which is the warmest month in Chelan?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Chelan?
    The coldest month is December with an average maximum temperature of 1°C.
  • Which is the wettest month in Chelan?
    December tops the wettest month list with 57 mm of rainfall.
  • Which is the driest month in Chelan?
    July is the driest month with 8 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.