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Yearly Normals for Lyons, CO

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 18 39 28 0.32 1134 0 Feb 19 41 30 0.47 979 0 Mar 23 47 35 0.9 943 0 Apr 27 53 40 1.42 738 0 May 35 62 49 2.11 513 0 Jun 42 73 57 1.43 238 9 Jul 47 79 63 2.16 94 21 Aug 45 77 61 1.98 138 12 Sep 39 70 54 1.23 327 1 Oct 31 59 45 0.93 617 0 Nov 24 46 35 0.63 905 0 Dec 18 40 29 0.37 1122 0 Year 31 57 44 13.95 7748 43 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather