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July Normals for Iona, SD

< June August > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 60 88 74 0.1 -- 10 2 60 89 74 0.1 -- 10 3 60 89 75 0.1 -- 10 4 60 89 75 0.1 -- 10 5 61 89 75 0.1 -- 10 6 61 89 75 0.1 -- 11 7 61 90 75 0.09 -- 11 8 61 90 75 0.09 -- 11 9 61 90 76 0.09 -- 11 10 61 90 76 0.09 -- 11 11 61 90 76 0.09 -- 11 12 61 91 76 0.09 0 12 13 62 91 76 0.09 0 12 14 62 91 76 0.09 0 12 15 62 91 76 0.09 0 12 16 62 91 77 0.09 0 12 17 62 91 77 0.09 0 12 18 62 91 77 0.09 0 12 19 62 91 77 0.09 0 12 20 62 92 77 0.09 0 12 21 62 92 77 0.09 0 12 22 62 92 77 0.09 0 12 23 62 92 77 0.09 0 12 24 62 92 77 0.09 0 12 25 62 92 77 0.08 0 12 26 62 92 77 0.08 0 12 27 62 92 77 0.08 0 12 28 62 92 77 0.08 0 12 29 62 92 77 0.08 0 12 30 62 92 77 0.08 0 12 31 62 92 77 0.08 0 12 Month 62 91 76 2.78 11 356 Data Controls Monthly: January February March April May June July August September October November December   | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather