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Yearly Normals for Sun River, MT

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 11 32 22 0.38 1350 0 Feb 15 38 26 0.29 1082 0 Mar 22 45 34 0.59 972 0 Apr 31 55 43 1.11 666 0 May 40 64 52 2.39 404 2 Jun 47 72 60 2.07 191 30 Jul 51 79 65 1.54 94 91 Aug 51 80 65 1.55 116 122 Sep 42 70 56 1.19 309 34 Oct 33 59 46 0.69 595 0 Nov 22 42 32 0.37 1004 0 Dec 15 34 25 0.33 1256 0 Year 32 56 44 12.5 8039 279 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather