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Climatological Normals

Yearly Normals for Norco, CA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 42 68 55 4.02 325 1 Feb 44 69 56 4.05 252 7 Mar 45 69 57 3.45 249 12 Apr 47 74 61 0.73 169 33 May 52 77 64 0.25 101 72 Jun 55 82 69 0.05 31 142 Jul 59 89 74 0 3 273 Aug 59 89 74 0.13 2 287 Sep 58 87 72 0.29 11 231 Oct 53 80 66 0.66 59 103 Nov 45 73 59 1.29 198 25 Dec 41 68 55 2.04 327 5 Year 50 77 63 16.96 1727 1191 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather