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Yearly Normals for Ismay, MT

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 2 26 14 0.36 1589 0 Feb 9 34 22 0.22 1209 0 Mar 18 45 31 0.61 1042 0 Apr 29 58 43 1.22 657 0 May 40 69 54 2.03 350 17 Jun 49 79 64 1.97 132 101 Jul 55 87 71 1.73 39 213 Aug 53 86 69 1.25 67 200 Sep 41 74 57 1.08 269 38 Oct 31 61 46 1 593 0 Nov 17 42 30 0.4 1065 0 Dec 6 31 18 0.22 1451 0 Year 29 58 43 12.09 8463 569 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather