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Yearly Normals for Diablo, WA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 28 38 33 8.84 997 0 Feb 30 42 36 6.47 821 0 Mar 33 48 41 5.14 758 0 Apr 37 56 47 3.01 554 0 May 44 64 54 2.15 359 4 Jun 49 69 59 1.65 194 23 Jul 54 76 65 1.39 88 88 Aug 55 77 66 1.22 76 109 Sep 50 70 60 2.19 201 41 Oct 42 57 50 5.23 475 1 Nov 35 44 39 10.51 771 0 Dec 30 38 34 9.64 968 0 Year 41 56 49 57.44 6262 266 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather