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Yearly Normals for Decker, MI

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 14 27 20 1.89 1384 0 Feb 14 29 22 1.61 1212 0 Mar 22 39 31 2.34 1063 0 Apr 33 52 42 2.76 681 0 May 44 66 55 2.89 340 20 Jun 53 75 64 2.91 102 78 Jul 58 80 69 3.04 21 148 Aug 56 78 67 3.68 52 112 Sep 50 70 60 3.75 177 16 Oct 40 58 49 2.54 508 2 Nov 31 44 37 2.8 830 0 Dec 21 32 27 2.22 1195 0 Year 36 54 45 32.43 7565 376 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather