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Yearly Normals for Portland, ND

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan -4 14 5 0.53 1865 0 Feb 2 21 12 0.53 1488 0 Mar 14 33 24 0.97 1283 0 Apr 28 52 40 1.25 759 1 May 42 68 55 2.24 337 27 Jun 52 76 64 3.57 115 82 Jul 57 80 68 3.45 45 146 Aug 54 79 66 2.91 90 131 Sep 42 69 55 2.05 306 19 Oct 32 55 43 1.55 680 0 Nov 17 34 25 0.91 1191 0 Dec 1 20 11 0.45 1690 0 Year 28 50 39 20.41 9849 406 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather