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Yearly Normals for Ethan, SD

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 4 26 15 0.47 1549 0 Feb 11 32 22 0.67 1209 0 Mar 23 44 33 1.66 986 0 Apr 35 59 47 2.71 548 3 May 47 71 59 3.33 225 41 Jun 57 81 69 3.52 47 163 Jul 62 86 74 2.64 10 293 Aug 59 85 72 2.32 20 236 Sep 48 76 62 2.27 147 55 Oct 36 62 49 1.54 503 0 Nov 22 43 32 1.2 977 0 Dec 10 30 20 0.53 1401 0 Year 34 58 46 22.86 7622 791 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather