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Yearly Normals for Olney, MT

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 14 29 21 1.1 1353 0 Feb 19 37 28 0.77 1039 0 Mar 25 47 36 0.89 899 0 Apr 31 58 44 1.15 623 0 May 37 67 52 1.86 401 1 Jun 44 74 59 2.26 203 22 Jul 47 82 65 1.74 103 87 Aug 46 82 64 1.26 96 68 Sep 38 71 54 1.19 332 10 Oct 30 56 43 0.91 678 0 Nov 24 38 31 1.33 1021 0 Dec 16 29 23 1.25 1312 0 Year 31 56 43 15.71 8060 188 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather