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Yearly Normals for Charlotte Hall, MD

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 24 43 34 3.57 977 0 Feb 26 46 36 2.84 807 0 Mar 33 55 44 3.92 641 0 Apr 42 66 54 3.26 332 4 May 52 76 64 4.29 108 80 Jun 62 84 73 3.63 6 249 Jul 67 89 78 4.21 0 399 Aug 65 87 76 3.9 1 345 Sep 57 80 69 4.08 35 144 Oct 44 69 57 3.43 283 22 Nov 36 58 47 3.32 544 0 Dec 28 48 38 3.25 837 0 Year 45 67 56 43.7 4571 1243 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather