Reading, PA Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 36 °F2 °C Feb 37 °F3 °C Mar 45 °F7 °C Apr 63 °F17 °C May 72 °F22 °C Jun 77 °F25 °C Jul 84 °F29 °C Aug 82 °F28 °C Sep 77 °F25 °C Oct 64 °F18 °C Nov 47 °F9 °C Dec 41 °F5 °C Humidity Jan 66% Feb 70% Mar 62% Apr 67% May 80% Jun 73% Jul 80% Aug 83% Sep 76% Oct 76% Nov 66% Dec 72% Rain Jan 75mm Feb 77mm Mar 82mm Apr 114mm May 337mm Jun 336mm Jul 383mm Aug 191mm Sep 76mm Oct 73mm Nov 76mm Dec 59mm Clouds Jan 57% Feb 52% Mar 45% Apr 55% May 60% Jun 39% Jul 23% Aug 40% Sep 28% Oct 60% Nov 38% Dec 51% Air quality US AQI Jan 41 Feb 38 Mar 31 Apr 28 May 28 Jun 31 Jul 36 Aug 34 Sep 26 Oct 22 Nov 28 Dec 36 Sun Jan 2UVI Feb 3UVI Mar 4UVI Apr 5UVI May 7UVI Jun 7UVI Jul 9UVI Aug 7UVI Sep 6UVI Oct 4UVI Nov 2UVI Dec 2UVI