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Yearly Normals for Mount Wilson, CA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 36 53 44 7.96 640 0 Feb 36 53 45 9.53 570 0 Mar 36 55 46 8.38 594 12 Apr 41 61 51 2.34 452 23 May 47 68 58 0.97 304 74 Jun 57 77 67 0.26 79 133 Jul 63 82 73 0.08 7 244 Aug 63 82 72 0.29 14 240 Sep 58 77 68 1.01 76 157 Oct 51 69 60 1.54 241 72 Nov 41 60 51 3.23 445 10 Dec 37 54 45 4.78 617 4 Year 47 66 57 40.37 4039 969 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather