Conroe, TX Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 57 °F14 °C Feb 64 °F18 °C Mar 70 °F21 °C Apr 75 °F24 °C May 82 °F28 °C Jun 88 °F31 °C Jul 90 °F32 °C Aug 91 °F33 °C Sep 90 °F32 °C Oct 77 °F25 °C Nov 66 °F19 °C Dec 64 °F18 °C Humidity Jan 77% Feb 85% Mar 76% Apr 78% May 84% Jun 82% Jul 83% Aug 79% Sep 79% Oct 79% Nov 73% Dec 73% Rain Jan 104mm Feb 54mm Mar 26mm Apr 85mm May 228mm Jun 168mm Jul 142mm Aug 81mm Sep 109mm Oct 105mm Nov 26mm Dec 32mm Clouds Jan 47% Feb 87% Mar 57% Apr 53% May 50% Jun 38% Jul 34% Aug 24% Sep 17% Oct 33% Nov 40% Dec 38% Air quality US AQI Jan 23 Feb 30 Mar 33 Apr 31 May 35 Jun 33 Jul 37 Aug 33 Sep 31 Oct 26 Nov 29 Dec 27 Sun Jan 4UVI Feb 5UVI Mar 6UVI Apr 8UVI May 8UVI Jun 9UVI Jul 9UVI Aug 9UVI Sep 9UVI Oct 6UVI Nov 4UVI Dec 4UVI