October
October · May · September
United States · 1991–2020
October leads for comfortable weather in Seymour: typically 23.2°C by day, 8.2°C at night, with 73 mm of rain. Based on measured 1991–2020 NOAA station history.
October · May · September
August · September · June
October · April · November
The weakest month is January, scoring 5 against October’s 77 — days reach only 9.5°C, 14° below the 24°C the score treats as ideal, and nights drop to -2.3°C.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 9.5°C | -2.3°C | 110 mm | 8.9 | 9 h 58 | 5 | Strong coverage |
| February | 12.1°C | -0.9°C | 105 mm | 9 | 10 h 49 | 17 | Strong coverage |
| March | 17°C | 2.5°C | 116 mm | 10 | 11 h 51 | 37 | Strong coverage |
| April | 22.3°C | 7°C | 107 mm | 8.9 | 13 h 03 | 65 | Strong coverage |
| May | 26.8°C | 12.5°C | 101 mm | 9.2 | 14 h 03 | 72 | Strong coverage |
| June | 30.5°C | 17.2°C | 106 mm | 9.5 | 14 h 35 | 59 | Strong coverage |
| July | 31.8°C | 19.3°C | 116 mm | 9.5 | 14 h 22 | 49 | Strong coverage |
| August | 31.8°C | 18.7°C | 85 mm | 8 | 13 h 31 | 56 | Strong coverage |
| September | 28.8°C | 15.1°C | 95 mm | 6.9 | 12 h 22 | 72 | Strong coverage |
| October | 23.2°C | 8.2°C | 73 mm | 6.5 | 11 h 13 | 77 | Strong coverage |
| November | 16.2°C | 1.9°C | 87 mm | 7.4 | 10 h 13 | 40 | Strong coverage |
| December | 11.1°C | -1°C | 120 mm | 10 | 9 h 44 | 10 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.7°C31 Jan 2002 | -31.1°C21 Jan 1985 | 86 mm23 Jan 2002 | 321 mm2013 · driest 5 mm in 1977 | 70 |
| February | 29.4°C23 Feb 1996 | -26.7°C5 Feb 1996 | 102 mm1 Feb 1985 | 306 mm2019 · driest 10 mm in 1978 | 71 |
| March | 30.6°C30 Mar 1998 | -20.0°C15 Mar 1993 | 127 mm12 Mar 1963 | 301 mm1963 · driest 36 mm in 1983 | 71 |
| April | 34.4°C30 Apr 2017 | -7.8°C7 Apr 1982 | 99 mm28 Apr 2011 | 218 mm1998 · driest 4 mm in 1976 | 69 |
| May | 33.9°C19 May 2026 | -2.8°C4 May 1971 | 79 mm5 May 2003 | 236 mm1984 · driest 18 mm in 1993 | 69 |
| June | 37.8°C22 Jun 1964 | -1.1°C1 Jun 1966 | 57 mm24 Jun 2011 | 225 mm1991 · driest 24 mm in 1993 | 68 |
| July | 41.1°C1 Jul 2012 | 6.1°C6 Jul 1964 | 94 mm29 Jul 1967 | 234 mm1996 · driest 13 mm in 1993 | 69 |
| August | 40.0°C24 Aug 2007 | 5.0°C29 Aug 1968 | 70 mm16 Aug 1964 | 200 mm2009 · driest 5 mm in 1962 | 70 |
| September | 38.3°C13 Sep 1998 | -0.6°C30 Sep 1967 | 97 mm18 Sep 2012 | 198 mm1989 · driest 2 mm in 1985 | 70 |
| October | 36.1°C4 Oct 2019 | -7.2°C29 Oct 1976 | 57 mm3 Oct 1961 | 189 mm2014 · driest 0 mm in 2000 | 70 |
| November | 30.0°C2 Nov 2016 | -13.9°C25 Nov 1970 | 84 mm11 Nov 2009 | 180 mm1957 · driest 16 mm in 1990 | 71 |
| December | 26.7°C15 Dec 1971 | -25.0°C13 Dec 1962 | 69 mm18 Dec 1961 | 283 mm1990 · driest 2 mm in 1965 | 71 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 19 | 4 | <1 |
| February | <1 | 0 | 16 | 4 | <1 |
| March | 3 | <1 | 10 | 4 | <1 |
| April | 10 | 1 | 3 | 4 | 0 |
| May | 22 | 8 | <1 | 3 | 0 |
| June | 28 | 19 | 0 | 4 | 0 |
| July | 30 | 24 | 0 | 4 | 0 |
| August | 30 | 24 | 0 | 3 | 0 |
| September | 25 | 13 | 0 | 3 | 0 |
| October | 12 | 2 | 2 | 3 | 0 |
| November | 2 | 0 | 11 | 3 | <1 |
| December | <1 | 0 | 18 | 4 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 79); on 2011–2025 it is October (82). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 3% | 30% | 12% | 36% | 5.4–12.2°C |
| February | 7% | 32% | 13% | 41% | 7.5–14.9°C |
| March | 25% | 32% | 12% | 41% | 13.3–19.8°C |
| April | 50% | 30% | 12% | 35% | 20.2–24.0°C |
| May | 65% | 31% | 12% | 38% | 24.0–28.5°C |
| June | 71% | 29% | 11% | 32% | 28.3–31.7°C |
| July | 69% | 31% | 12% | 38% | 29.4–33.3°C |
| August | 75% | 25% | 9% | 26% | 29.2–33.1°C |
| September | 75% | 24% | 10% | 24% | 25.8–30.3°C |
| October | 58% | 22% | 8% | 22% | 19.7–25.0°C |
| November | 21% | 26% | 10% | 29% | 13.2–18.4°C |
| December | 5% | 30% | 13% | 37% | 7.3–14.4°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page