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Yearly Normals for Southport, CT

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 19 37 28 4.2 1153 0 Feb 21 39 30 3.03 982 0 Mar 29 48 39 4.33 820 0 Apr 38 60 49 4.37 487 0 May 47 70 58 4.36 228 19 Jun 57 79 68 3.94 27 113 Jul 63 84 73 3.83 1 259 Aug 61 82 72 3.89 3 211 Sep 53 75 64 4.54 85 48 Oct 40 64 52 3.89 405 2 Nov 33 52 43 4.04 665 0 Dec 24 42 33 3.96 998 0 Year 40 61 51 48.38 5854 652 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather