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Yearly Normals for Yellowstone Lake, WY

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 9 29 19 0.88 1430 0 Feb 12 34 23 0.64 1182 0 Mar 18 40 29 1.08 1114 0 Apr 25 49 37 1.09 835 0 May 34 59 46 2.01 578 0 Jun 41 69 55 1.93 306 11 Jul 46 79 63 1.59 136 58 Aug 45 78 62 1.44 164 56 Sep 36 67 51 1.29 416 5 Oct 27 54 41 0.95 761 0 Nov 17 37 27 0.94 1137 0 Dec 9 29 19 0.79 1429 0 Year 27 52 39 14.63 9488 130 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather