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Yearly Normals for Fort Thompson, SD

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 1 25 13 0.41 1619 0 Feb 7 31 19 0.5 1295 0 Mar 18 43 31 1.31 1070 0 Apr 31 58 44 1.98 628 1 May 43 70 57 2.95 287 24 Jun 53 80 66 2.95 78 118 Jul 58 87 72 2.62 21 250 Aug 56 85 71 2.07 45 216 Sep 46 75 60 1.77 193 55 Oct 32 61 47 1.75 574 0 Nov 17 41 29 0.65 1082 0 Dec 5 28 17 0.41 1502 0 Year 31 57 44 19.37 8394 664 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather