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September Normals for Perth, ND

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 48 70 59 0.08 8 2 2 48 69 59 0.08 8 1 3 48 69 58 0.07 8 1 4 47 68 58 0.07 9 1 5 47 68 57 0.07 9 1 6 46 67 57 0.07 9 1 7 46 67 56 0.07 10 1 8 46 66 56 0.07 10 1 9 45 66 56 0.07 10 0 10 45 65 55 0.07 10 0 11 44 65 55 0.07 11 0 12 44 64 54 0.07 11 0 13 44 64 54 0.07 11 0 14 43 64 53 0.07 12 0 15 43 63 53 0.07 12 0 16 42 63 53 0.07 12 0 17 42 62 52 0.06 13 0 18 42 62 52 0.06 13 0 19 41 62 52 0.06 13 0 20 41 61 51 0.06 14 0 21 41 61 51 0.06 14 0 22 40 61 51 0.06 14 0 23 40 60 50 0.06 15 0 24 40 60 50 0.06 15 0 25 39 59 49 0.06 15 0 26 39 59 49 0.06 16 0 27 39 59 49 0.06 16 0 28 38 59 48 0.05 16 0 29 38 58 48 0.05 17 0 30 38 58 48 0.05 17 0 Month 43 63 53 1.95 368 9 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