Historical weather data, all-time temperature records, and monthly climate averages for Marysville, WA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Marysville tends to be a coin flip when it comes to rain — there's a 56% chance of precipitation on this date, with 109 years of data to back that up. Expect a typical high around 56° and a low near 38°, though this date has swung from a balmy 76° in 2004 all the way down to a bitter 25° back in 1918.
Marysville's weather has some real extremes tucked into its history — the mercury once hit 101° in June 2021 and plummeted to just 1° in January 1950, a 100-degree swing between the worst of summer and winter. On the wet side, a single November day in 1990 dropped 3.62 inches of rain, and a February storm in 1916 buried the area under 24.1 inches of snow.
Summers here are mild and pleasant, with highs peaking around 73-74° in mid-July — ideal if you're not looking for scorching heat. Winters are cool and gray, bottoming out near 45° in January, and the wettest stretch of the year runs through mid-November when weekly rainfall averages top an inch. Spring and fall offer comfortable temperatures but come with a reliable chance of showers.