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Yearly Normals for Forest Knolls, CA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 39 58 48 5.41 515 0 Feb 41 63 52 5.31 366 0 Mar 43 65 54 3.85 345 0 Apr 44 70 57 1.4 247 8 May 47 74 60 0.62 167 23 Jun 50 79 65 0.15 65 56 Jul 52 83 67 0.05 22 93 Aug 52 83 68 0.08 13 88 Sep 52 82 67 0.29 32 88 Oct 48 77 62 1.37 110 27 Nov 42 66 54 3.52 329 2 Dec 38 58 48 3.8 530 0 Year 46 71 59 25.85 2741 385 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather