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Yearly Normals for Three Rivers, MA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 11 33 22 3.76 1325 0 Feb 13 36 25 2.85 1131 0 Mar 24 46 35 3.59 938 0 Apr 34 58 46 3.83 580 0 May 45 70 57 4.11 250 14 Jun 54 78 66 3.81 50 86 Jul 59 83 71 3.95 5 196 Aug 57 81 69 4.1 16 138 Sep 49 73 61 4.06 142 18 Oct 36 62 49 3.96 494 0 Nov 28 49 39 3.93 785 0 Dec 18 38 28 3.62 1140 0 Year 36 59 47 45.57 6856 452 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather