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September Normals for Slidell, LA

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 70 90 80 0.17 0 15 2 70 90 80 0.17 0 15 3 70 90 80 0.17 0 15 4 70 90 80 0.17 0 15 5 70 90 80 0.17 0 14 6 69 90 80 0.17 0 14 7 69 89 79 0.17 0 14 8 69 89 79 0.17 0 14 9 69 89 79 0.17 0 14 10 69 89 79 0.17 0 14 11 68 89 79 0.17 0 14 12 68 89 79 0.17 0 13 13 68 88 78 0.17 0 13 14 68 88 78 0.17 0 13 15 68 88 78 0.17 0 13 16 67 88 78 0.16 0 12 17 67 88 77 0.16 0 12 18 67 87 77 0.16 0 12 19 66 87 77 0.16 0 12 20 66 87 77 0.16 0 12 21 66 87 76 0.15 0 11 22 65 87 76 0.15 0 11 23 65 86 76 0.15 0 11 24 65 86 75 0.15 0 10 25 64 86 75 0.14 0 10 26 64 86 75 0.14 0 10 27 63 86 74 0.14 0 10 28 63 85 74 0.14 0 9 29 62 85 74 0.13 0 9 30 62 85 73 0.13 0 9 Month 67 88 77 4.77 0 370 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