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Yearly Normals for Round Grove, IL

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 11 26 18 1.33 1451 0 Feb 16 31 24 1.26 1163 0 Mar 27 43 35 2.36 938 0 Apr 38 56 47 3.36 542 1 May 49 68 59 3.87 236 42 Jun 60 78 69 4.33 33 143 Jul 64 82 73 3.32 2 243 Aug 62 79 70 4.51 28 195 Sep 54 72 63 3.1 131 55 Oct 42 59 51 2.66 450 4 Nov 31 43 37 2.59 845 0 Dec 18 30 24 1.77 1274 0 Year 39 56 47 34.46 7093 683 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather