Marysville, WA Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 48 °F9 °C Feb 41 °F5 °C Mar 54 °F12 °C Apr 57 °F14 °C May 64 °F18 °C Jun 68 °F20 °C Jul 73 °F23 °C Aug 75 °F24 °C Sep 66 °F19 °C Oct 55 °F13 °C Nov 52 °F11 °C Dec 46 °F8 °C Humidity Jan 76% Feb 77% Mar 63% Apr 76% May 72% Jun 73% Jul 71% Aug 71% Sep 80% Oct 76% Nov 76% Dec 82% Rain Jan 37mm Feb 42mm Mar 29mm Apr 42mm May 24mm Jun 16mm Jul 26mm Aug 16mm Sep 70mm Oct 58mm Nov 48mm Dec 54mm Clouds Jan 66% Feb 64% Mar 39% Apr 69% May 39% Jun 44% Jul 44% Aug 41% Sep 50% Oct 54% Nov 59% Dec 76% Air quality US AQI Jan 30 Feb 30 Mar 23 Apr 15 May 24 Jun 18 Jul 17 Aug 26 Sep 23 Oct 36 Nov 35 Dec 40 Sun Jan 1UVI Feb 1UVI Mar 3UVI Apr 4UVI May 5UVI Jun 6UVI Jul 6UVI Aug 5UVI Sep 4UVI Oct 2UVI Nov 1UVI Dec 1UVI
