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Yearly Normals for Ottawa, OH

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 17 31 24 1.92 1265 0 Feb 20 35 27 1.84 1055 0 Mar 29 46 37 2.65 859 0 Apr 38 59 49 3.3 492 2 May 49 71 60 3.62 215 66 Jun 59 80 70 3.78 25 170 Jul 63 84 74 3.89 1 272 Aug 61 82 72 3.21 15 216 Sep 54 75 64 3.23 88 68 Oct 42 63 53 2.59 397 11 Nov 33 49 41 2.93 723 0 Dec 23 36 30 2.64 1094 0 Year 41 59 50 35.6 6229 805 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather