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Yearly Normals for Grand Mound, IA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 8 27 17 1.17 1478 0 Feb 13 32 23 1.31 1179 0 Mar 25 45 35 2.23 931 0 Apr 36 59 48 3.31 525 2 May 48 71 59 4 224 49 Jun 58 80 69 4.44 26 154 Jul 62 84 73 3.48 8 255 Aug 60 81 71 4.69 26 201 Sep 50 74 62 3.68 136 44 Oct 39 62 50 2.48 458 4 Nov 26 45 36 2.52 879 0 Dec 15 32 23 1.77 1293 0 Year 37 58 47 35.08 7163 709 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather