Oregon City, OR Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 46 °F8 °C Feb 42 °F6 °C Mar 52 °F11 °C Apr 57 °F14 °C May 66 °F19 °C Jun 70 °F21 °C Jul 75 °F24 °C Aug 77 °F25 °C Sep 68 °F20 °C Oct 59 °F15 °C Nov 53 °F12 °C Dec 46 °F8 °C Humidity Jan 83% Feb 81% Mar 72% Apr 76% May 67% Jun 60% Jul 60% Aug 62% Sep 78% Oct 75% Nov 80% Dec 87% Rain Jan 60mm Feb 78mm Mar 44mm Apr 57mm May 60mm Jun 27mm Jul 7mm Aug 17mm Sep 66mm Oct 41mm Nov 23mm Dec 50mm Clouds Jan 69% Feb 78% Mar 38% Apr 67% May 44% Jun 33% Jul 32% Aug 26% Sep 51% Oct 35% Nov 55% Dec 68% Air quality US AQI Jan 18 Feb 21 Mar 20 Apr 16 May 21 Jun 13 Jul 20 Aug 28 Sep 21 Oct 28 Nov 41 Dec 31 Sun Jan 1UVI Feb 2UVI Mar 3UVI Apr 4UVI May 5UVI Jun 7UVI Jul 7UVI Aug 6UVI Sep 5UVI Oct 3UVI Nov 2UVI Dec 1UVI
