Worcester, MA Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 32 °F0 °C Feb 36 °F2 °C Mar 41 °F5 °C Apr 57 °F14 °C May 63 °F17 °C Jun 74 °F24 °C Jul 82 °F28 °C Aug 79 °F26 °C Sep 72 °F22 °C Oct 59 °F15 °C Nov 46 °F8 °C Dec 34 °F1 °C Humidity Jan 64% Feb 59% Mar 57% Apr 71% May 71% Jun 72% Jul 71% Aug 74% Sep 71% Oct 71% Nov 62% Dec 66% Rain Jan 80mm Feb 56mm Mar 53mm Apr 107mm May 57mm Jun 101mm Jul 91mm Aug 89mm Sep 71mm Oct 82mm Nov 50mm Dec 83mm Clouds Jan 44% Feb 49% Mar 34% Apr 62% May 61% Jun 46% Jul 25% Aug 32% Sep 28% Oct 59% Nov 30% Dec 48% Air quality US AQI Jan 36 Feb 35 Mar 28 Apr 23 May 24 Jun 26 Jul 31 Aug 29 Sep 20 Oct 23 Nov 27 Dec 36 Sun Jan 2UVI Feb 3UVI Mar 4UVI Apr 5UVI May 6UVI Jun 7UVI Jul 8UVI Aug 7UVI Sep 6UVI Oct 4UVI Nov 2UVI Dec 1UVI