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Yearly Normals for Big Arm, MT

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 22 33 28 1.64 1158 0 Feb 24 38 31 1.18 956 0 Mar 29 46 37 1.44 864 0 Apr 35 56 45 1.62 598 0 May 41 64 53 2.94 384 2 Jun 48 72 60 2.76 186 26 Jul 53 80 66 1.72 77 119 Aug 53 80 66 1.61 78 118 Sep 44 69 57 1.82 278 23 Oct 37 56 47 1.47 568 0 Nov 30 42 36 1.75 883 0 Dec 24 34 29 1.92 1110 0 Year 37 56 46 21.87 7140 288 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather