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Anderson Island, Washington, United States has a mild climate all year round, with temperatures rarely going above 28°C or below 0°C. Summers can be hot and humid, with temperatures averaging around 23°C in July and August. Winters are milder, with temperatures around 10°C in December and January. Precipitation is frequent throughout the year, with an average of about 170mm of rain and snow each month. The wettest months are usually October, November and December. Snowfall is rare, with an average of only 2cm of snow each year. The sunniest months are July and August, with an average of 9 hours of sunshine per day.
As of 2020, the city population is 1571.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Anderson Island, Washington.