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Yearly Normals for Collister, ID

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 23 37 30 1.72 1090 0 Feb 28 45 36 1.6 801 0 Mar 33 55 44 1.58 653 0 Apr 38 63 51 1.21 435 2 May 45 72 59 1.29 220 22 Jun 52 81 67 0.82 80 133 Jul 58 90 74 0.3 16 294 Aug 57 89 73 0.33 16 259 Sep 49 79 64 0.71 123 80 Oct 39 66 53 0.87 390 2 Nov 31 49 40 1.72 764 0 Dec 24 38 31 1.66 1058 0 Year 40 64 52 13.81 5646 792 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather