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September Normals for Roy, ID

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 47 85 66 0.02 2 4 2 47 85 66 0.02 3 3 3 47 84 65 0.02 3 3 4 46 84 65 0.02 3 3 5 46 83 65 0.02 3 3 6 46 83 64 0.02 3 2 7 45 82 64 0.02 3 2 8 45 82 63 0.02 4 2 9 45 82 63 0.02 4 2 10 44 81 63 0.02 4 2 11 44 81 62 0.02 4 2 12 44 80 62 0.02 5 2 13 43 80 62 0.02 5 1 14 43 80 61 0.03 5 1 15 42 79 61 0.03 5 1 16 42 79 61 0.03 6 1 17 42 78 60 0.03 6 1 18 41 78 60 0.03 6 1 19 41 77 59 0.03 6 1 20 41 77 59 0.03 7 1 21 40 77 59 0.03 7 1 22 40 76 58 0.03 7 0 23 40 76 58 0.03 8 0 24 39 76 58 0.03 8 0 25 39 75 57 0.03 8 0 26 39 75 57 0.03 8 0 27 38 74 56 0.03 9 0 28 38 74 56 0.03 9 0 29 38 74 56 0.03 9 0 30 37 73 55 0.03 10 0 Month 42 79 61 0.77 170 39 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