September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Centertown: typically 26.3°C by day, 14.2°C at night, with 102 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 79 — days reach only 4.1°C, 20° below the 24°C the score treats as ideal.
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 | 4.1°C | -6.5°C | 54 mm | 5.5 | 9 h 44 | 5 | Strong coverage |
| February | 7.1°C | -4.2°C | 51 mm | 5.2 | 10 h 41 | 5 | Strong coverage |
| March | 12.8°C | 1.1°C | 77 mm | 8.5 | 11 h 50 | 27 | Strong coverage |
| April | 18.8°C | 6.7°C | 125 mm | 9.4 | 13 h 09 | 50 | Strong coverage |
| May | 23.6°C | 12.5°C | 137 mm | 10.4 | 14 h 15 | 73 | Strong coverage |
| June | 28.4°C | 17.5°C | 119 mm | 8.3 | 14 h 51 | 64 | Strong coverage |
| July | 30.7°C | 19.9°C | 120 mm | 7.1 | 14 h 37 | 53 | Strong coverage |
| August | 30.4°C | 18.9°C | 96 mm | 6.6 | 13 h 40 | 60 | Strong coverage |
| September | 26.3°C | 14.2°C | 102 mm | 6.3 | 12 h 23 | 79 | Strong coverage |
| October | 19.9°C | 7.6°C | 103 mm | 7.5 | 11 h 07 | 60 | Strong coverage |
| November | 12.4°C | 1.5°C | 77 mm | 6.5 | 10 h 01 | 28 | Strong coverage |
| December | 6.2°C | -3.7°C | 54 mm | 5.1 | 9 h 29 | 5 | 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 | 25.6°C23 Jan 1967 | -27.2°C10 Jan 1982 | 55 mm5 Jan 2005 | 184 mm2005 · driest 0 mm in 1964 | 71 |
| February | 27.8°C29 Feb 1972 | -25.6°C9 Feb 1979 | 67 mm21 Feb 1997 | 123 mm1997 · driest 0 mm in 1958 | 71 |
| March | 32.8°C27 Mar 2026 | -23.3°C5 Mar 1960 | 64 mm21 Mar 2012 | 244 mm1973 · driest 4 mm in 1966 | 71 |
| April | 33.3°C20 Apr 1987 | -7.2°C7 Apr 2007 | 118 mm11 Apr 1994 | 362 mm1994 · driest 5 mm in 2023 | 71 |
| May | 34.4°C22 May 1972 | -1.1°C3 May 1976 | 110 mm18 May 1995 | 326 mm1995 · driest 13 mm in 1965 | 72 |
| June | 40.0°C29 Jun 2012 | 6.1°C5 Jun 1993 | 144 mm8 Jun 2026 | 275 mm1969 · driest 14 mm in 1988 | 72 |
| July | 42.8°C31 Jul 1980 | 8.9°C7 Jul 1972 | 184 mm7 Jul 1993 | 350 mm1993 · driest 14 mm in 1977 | 72 |
| August | 42.2°C3 Aug 2011 | 7.2°C28 Aug 1986 | 90 mm1 Aug 2016 | 296 mm2005 · driest 4 mm in 2025 | 72 |
| September | 40.0°C4 Sep 1954 | -1.1°C30 Sep 1984 | 117 mm14 Sep 2008 | 322 mm1986 · driest 6 mm in 1960 | 72 |
| October | 35.6°C2 Oct 1976 | -8.3°C29 Oct 2010 | 134 mm12 Oct 1969 | 285 mm2014 · driest 0 mm in 1964 | 72 |
| November | 29.4°C2 Nov 1964 | -18.3°C8 Nov 1991 | 78 mm2 Nov 1983 | 227 mm1985 · driest 9 mm in 1989 | 71 |
| December | 23.9°C8 Dec 1991 | -29.4°C23 Dec 1989 | 84 mm2 Dec 1982 | 215 mm1982 · driest 1 mm in 2020 | 71 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | 2 | 2 |
| February | <1 | 0 | 21 | 2 | 2 |
| March | 2 | 0 | 14 | 3 | <1 |
| April | 6 | <1 | 3 | 4 | 0 |
| May | 14 | 3 | 0 | 4 | 0 |
| June | 24 | 12 | 0 | 3 | 0 |
| July | 29 | 19 | 0 | 3 | 0 |
| August | 28 | 17 | 0 | 3 | 0 |
| September | 19 | 7 | 0 | 3 | 0 |
| October | 7 | <1 | 2 | 3 | 0 |
| November | <1 | 0 | 12 | 3 | <1 |
| December | 0 | 0 | 23 | 2 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 1% | 15% | 4% | 12% | 1.7–8.9°C |
| February | 6% | 18% | 5% | 13% | 2.6–11.9°C |
| March | 19% | 25% | 9% | 27% | 9.8–17.6°C |
| April | 38% | 30% | 12% | 34% | 17.3–22.7°C |
| May | 59% | 30% | 14% | 36% | 22.1–27.0°C |
| June | 73% | 26% | 11% | 28% | 27.1–31.2°C |
| July | 78% | 22% | 10% | 20% | 29.4–33.8°C |
| August | 80% | 19% | 9% | 18% | 29.0–33.5°C |
| September | 75% | 20% | 10% | 18% | 24.5–29.6°C |
| October | 49% | 22% | 10% | 23% | 18.7–23.7°C |
| November | 17% | 20% | 8% | 16% | 9.9–16.2°C |
| December | 3% | 17% | 6% | 11% | 3.4–10.2°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