St. George, UT Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 52 °F 11 °C Feb 46 °F 8 °C Mar 63 °F 17 °C Apr 72 °F 22 °C May 73 °F 23 °C Jun 90 °F 32 °C Jul 97 °F 36 °C Aug 97 °F 36 °C Sep 88 °F 31 °C Oct 72 °F 22 °C Nov 68 °F 20 °C Dec 52 °F 11 °C Humidity Jan 52% Feb 53% Mar 50% Apr 34% May 40% Jun 17% Jul 15% Aug 20% Sep 21% Oct 14% Nov 20% Dec 61% Rain Jan 25mm Feb 39mm Mar 30mm Apr 16mm May 24mm Jun 18mm Jul 8mm Aug 6mm Sep 7mm Oct 3mm Nov 43mm Dec 27mm Clouds Jan 20% Feb 32% Mar 42% Apr 21% May 26% Jun 8% Jul 6% Aug 2% Sep 3% Oct 1% Nov 7% Dec 42% Air quality US AQI Jan 12 Feb 10 Mar 10 Apr 16 May 19 Jun 24 Jul 25 Aug 23 Sep 23 Oct 28 Nov 27 Dec 17 Sun Jan 3UVI Feb 4UVI Mar 6UVI Apr 8UVI May 8UVI Jun 10UVI Jul 10UVI Aug 10UVI Sep 8UVI Oct 5UVI Nov 4UVI Dec 2UVI
