Anchorage, AK Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 23 °F-5 °C Feb 23 °F-5 °C Mar 41 °F5 °C Apr 45 °F7 °C May 54 °F12 °C Jun 66 °F19 °C Jul 70 °F21 °C Aug 70 °F21 °C Sep 57 °F14 °C Oct 45 °F7 °C Nov 36 °F2 °C Dec 23 °F-5 °C Humidity Jan 71% Feb 76% Mar 70% Apr 61% May 60% Jun 63% Jul 66% Aug 60% Sep 75% Oct 72% Nov 77% Dec 73% Rain Jan 5mm Feb 10mm Mar 5mm Apr 14mm May 23mm Jun 4mm Jul 16mm Aug 2mm Sep 49mm Oct 27mm Nov 23mm Dec 14mm Clouds Jan 68% Feb 61% Mar 72% Apr 56% May 69% Jun 40% Jul 44% Aug 29% Sep 74% Oct 80% Nov 84% Dec 71% Air quality US AQI Jan 33 Feb 32 Mar 24 Apr 23 May 14 Jun 14 Jul 19 Aug 21 Sep 17 Oct 19 Nov 30 Dec 25 Sun Jan 0UVI Feb 0UVI Mar 1UVI Apr 2UVI May 3UVI Jun 5UVI Jul 5UVI Aug 4UVI Sep 2UVI Oct 1UVI Nov 0UVI Dec 0UVI