La Plata Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 82 °F28 °C Feb 81 °F27 °C Mar 73 °F23 °C Apr 70 °F21 °C May 64 °F18 °C Jun 61 °F16 °C Jul 55 °F13 °C Aug 57 °F14 °C Sep 63 °F17 °C Oct 66 °F19 °C Nov 75 °F24 °C Dec 79 °F26 °C Humidity Jan 68% Feb 61% Mar 65% Apr 65% May 70% Jun 77% Jul 70% Aug 65% Sep 59% Oct 65% Nov 63% Dec 52% Rain Jan 37mm Feb 57mm Mar 65mm Apr 27mm May 49mm Jun 183mm Jul 42mm Aug 24mm Sep 12mm Oct 119mm Nov 35mm Dec 56mm Clouds Jan 32% Feb 12% Mar 32% Apr 34% May 52% Jun 69% Jul 67% Aug 61% Sep 27% Oct 61% Nov 33% Dec 34% Air quality US AQI Jan 47 Feb 47 Mar 43 Apr 41 May 38 Jun 38 Jul 39 Aug 42 Sep 41 Oct 35 Nov 42 Dec 43 Sun Jan 12UVI Feb 12UVI Mar 8UVI Apr 5UVI May 3UVI Jun 2UVI Jul 2UVI Aug 3UVI Sep 5UVI Oct 6UVI Nov 9UVI Dec 11UVI