Yuba City, CA Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 54 °F12 °C Feb 51 °F11 °C Mar 57 °F14 °C Apr 70 °F21 °C May 72 °F22 °C Jun 85 °F30 °C Jul 88 °F31 °C Aug 91 °F33 °C Sep 85 °F30 °C Oct 73 °F23 °C Nov 68 °F20 °C Dec 54 °F12 °C Humidity Jan 80% Feb 74% Mar 70% Apr 61% May 64% Jun 48% Jul 47% Aug 48% Sep 49% Oct 39% Nov 56% Dec 82% Rain Jan 57mm Feb 92mm Mar 55mm Apr 16mm May 38mm Jun 5mm Jul 6mm Aug 5mm Sep 15mm Oct 6mm Nov 11mm Dec 57mm Clouds Jan 42% Feb 51% Mar 53% Apr 25% May 19% Jun 7% Jul 3% Aug 3% Sep 3% Oct 2% Nov 12% Dec 61% Air quality US AQI Jan 48 Feb 38 Mar 32 Apr 30 May 32 Jun 35 Jul 47 Aug 50 Sep 40 Oct 38 Nov 56 Dec 50 Sun Jan 2UVI Feb 3UVI Mar 4UVI Apr 7UVI May 7UVI Jun 9UVI Jul 10UVI Aug 9UVI Sep 7UVI Oct 5UVI Nov 3UVI Dec 2UVI