Oshawa Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 28 °F-2 °C Feb 28 °F-2 °C Mar 36 °F2 °C Apr 46 °F8 °C May 55 °F13 °C Jun 67 °F20 °C Jul 77 °F25 °C Aug 75 °F24 °C Sep 68 °F20 °C Oct 57 °F14 °C Nov 39 °F4 °C Dec 34 °F1 °C Humidity Jan 61% Feb 64% Mar 59% Apr 67% May 69% Jun 68% Jul 70% Aug 65% Sep 70% Oct 68% Nov 66% Dec 67% Rain Jan 47mm Feb 47mm Mar 31mm Apr 84mm May 80mm Jun 98mm Jul 87mm Aug 68mm Sep 89mm Oct 86mm Nov 45mm Dec 48mm Clouds Jan 62% Feb 78% Mar 43% Apr 69% May 65% Jun 44% Jul 24% Aug 24% Sep 46% Oct 50% Nov 75% Dec 66% Air quality US AQI Jan 26 Feb 26 Mar 18 Apr 19 May 22 Jun 24 Jul 27 Aug 26 Sep 19 Oct 20 Nov 21 Dec 26 Sun Jan 1UVI Feb 2UVI Mar 3UVI Apr 4UVI May 5UVI Jun 7UVI Jul 8UVI Aug 7UVI Sep 5UVI Oct 3UVI Nov 2UVI Dec 1UVI
