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Yearly Normals for Roche Harbor, WA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 34 45 39 3.86 800 0 Feb 36 48 42 2.79 655 0 Mar 37 52 45 2.27 631 0 Apr 40 57 48 1.89 499 0 May 44 62 53 1.72 375 0 Jun 47 66 57 1.4 255 0 Jul 49 70 60 0.94 172 0 Aug 50 70 60 1.06 160 1 Sep 47 66 57 1.34 248 0 Oct 43 58 50 2.42 459 0 Nov 38 50 44 4.38 635 0 Dec 35 45 40 4.09 781 0 Year 42 57 49 28.16 5670 1 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather