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Yearly Normals for Chester, MT

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 8 31 20 0.42 1403 0 Feb 13 36 24 0.33 1138 0 Mar 20 44 32 0.7 1015 0 Apr 29 56 43 1.1 673 0 May 38 65 52 2.17 419 1 Jun 45 73 59 2.63 210 21 Jul 48 80 64 1.45 105 76 Aug 48 80 64 1.76 143 97 Sep 39 69 54 1.46 351 19 Oct 31 57 44 0.74 647 0 Nov 19 41 30 0.51 1051 0 Dec 11 33 22 0.42 1323 0 Year 29 55 42 13.69 8478 214 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather