Xining Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 32 °F0 °C Feb 38 °F4 °C Mar 48 °F9 °C Apr 61 °F16 °C May 63 °F17 °C Jun 67 °F20 °C Jul 72 °F22 °C Aug 72 °F22 °C Sep 63 °F17 °C Oct 54 °F12 °C Nov 46 °F8 °C Dec 30 °F-1 °C Humidity Jan 41% Feb 40% Mar 38% Apr 38% May 51% Jun 70% Jul 69% Aug 70% Sep 71% Oct 63% Nov 47% Dec 35% Rain Jan 4mm Feb 2mm Mar 3mm Apr 14mm May 25mm Jun 177mm Jul 47mm Aug 51mm Sep 45mm Oct 25mm Nov 3mm Dec 2mm Clouds Jan 51% Feb 58% Mar 61% Apr 53% May 62% Jun 79% Jul 56% Aug 66% Sep 55% Oct 64% Nov 47% Dec 22% Air quality US AQI Jan 153 Feb 138 Mar 121 Apr 120 May 107 Jun 83 Jul 88 Aug 77 Sep 83 Oct 95 Nov 141 Dec 160 Sun Jan 3UVI Feb 4UVI Mar 5UVI Apr 8UVI May 7UVI Jun 7UVI Jul 8UVI Aug 8UVI Sep 7UVI Oct 5UVI Nov 3UVI Dec 2UVI