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Yearly Normals for Winthrop, IA

Month Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling Jan 6 24 15 1.13 1561 0 Feb 13 30 22 1.13 1218 0 Mar 25 43 34 1.93 959 0 Apr 36 58 47 3.34 538 2 May 48 70 59 3.88 231 50 Jun 58 79 69 4.59 31 139 Jul 62 82 72 4.13 11 236 Aug 60 80 70 4.99 33 185 Sep 51 73 62 3.5 145 43 Oct 38 61 50 2.49 480 2 Nov 25 43 34 2.08 941 0 Dec 12 29 20 1.46 1388 0 Year 36 56 46 34.65 7536 657 Data Controls Monthly | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather