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October Normals for Portsmouth, RI

< September November > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 46 68 57 0.13 8 -- 2 45 68 57 0.13 9 0 3 45 67 56 0.13 9 0 4 44 67 56 0.13 9 0 5 44 67 55 0.13 10 0 6 44 66 55 0.12 10 0 7 43 66 55 0.12 11 0 8 43 65 54 0.12 11 0 9 42 65 54 0.12 11 0 10 42 65 53 0.12 12 0 11 42 64 53 0.12 12 0 12 41 64 53 0.12 12 0 13 41 63 52 0.12 13 0 14 41 63 52 0.12 13 0 15 40 63 52 0.12 14 0 16 40 62 51 0.12 14 0 17 40 62 51 0.12 14 0 18 39 62 51 0.12 15 0 19 39 61 50 0.13 15 0 20 39 61 50 0.13 15 0 21 39 61 50 0.13 15 0 22 38 60 49 0.13 16 0 23 38 60 49 0.13 16 0 24 38 60 49 0.13 16 0 25 38 59 48 0.13 17 0 26 37 59 48 0.13 17 0 27 37 59 48 0.13 17 0 28 37 58 48 0.13 17 0 29 37 58 47 0.14 18 0 30 37 58 47 0.14 18 0 31 36 57 47 0.14 18 0 Month 40 63 52 3.93 422 1 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