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Yearly Normals for Grass Creek, WY

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 6 34 20 0.37 1402 0 Feb 9 38 24 0.33 1160 0 Mar 16 43 30 0.94 1091 0 Apr 23 50 37 1.6 850 0 May 32 60 46 2.9 585 0 Jun 40 70 55 2.02 311 7 Jul 44 78 61 1.6 159 34 Aug 44 77 60 1.27 173 28 Sep 34 67 51 1.46 435 3 Oct 26 56 41 1.07 745 0 Nov 14 41 28 0.63 1121 0 Dec 7 35 21 0.47 1369 0 Year 25 54 39 14.66 9401 72 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather