September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Flatwoods: typically 26.7°C by day, 12.6°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · June · July
October · April · May
The weakest month is January, scoring 5 against September’s 75 — days reach only 5.6°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.9°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 | 5.6°C | -5.9°C | 82 mm | 10.1 | 9 h 45 | 5 | Strong coverage |
| February | 8.1°C | -4.8°C | 92 mm | 9.9 | 10 h 42 | 5 | Strong coverage |
| March | 13.5°C | -0.7°C | 108 mm | 11.2 | 11 h 50 | 19 | Strong coverage |
| April | 20.4°C | 4.4°C | 105 mm | 10.4 | 13 h 09 | 53 | Strong coverage |
| May | 25°C | 10.2°C | 111 mm | 10.2 | 14 h 15 | 71 | Strong coverage |
| June | 29.2°C | 15.4°C | 110 mm | 10.2 | 14 h 50 | 65 | Strong coverage |
| July | 30.8°C | 17.7°C | 122 mm | 9.6 | 14 h 36 | 55 | Strong coverage |
| August | 30.3°C | 16.7°C | 95 mm | 7.9 | 13 h 40 | 63 | Strong coverage |
| September | 26.7°C | 12.6°C | 91 mm | 7.3 | 12 h 23 | 75 | Strong coverage |
| October | 20.5°C | 5.5°C | 78 mm | 7.6 | 11 h 07 | 61 | Strong coverage |
| November | 13.4°C | -0.1°C | 76 mm | 8.3 | 10 h 01 | 27 | Strong coverage |
| December | 7.5°C | -3.5°C | 97 mm | 10 | 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 | 26.7°C26 Jan 1950 | -31.7°C19 Jan 1994 | 59 mm1 Jan 1945 | 294 mm1937 · driest 0 mm in 1897 | 107 |
| February | 26.7°C1 Feb 2002 | -30.6°C10 Feb 1899 | 102 mm16 Feb 2010 | 236 mm1989 · driest 7 mm in 1941 | 109 |
| March | 33.3°C26 Mar 1929 | -22.8°C6 Mar 2015 | 102 mm20 Mar 2002 | 247 mm1997 · driest 17 mm in 1979 | 108 |
| April | 34.4°C24 Apr 1925 | -12.8°C9 Apr 1996 | 76 mm5 Apr 1898 | 243 mm2011 · driest 28 mm in 1986 | 108 |
| May | 41.1°C20 May 1996 | -6.7°C1 May 1996 | 102 mm11 May 2011 | 238 mm1996 · driest 21 mm in 1964 | 108 |
| June | 39.4°C30 Jun 2012 | -1.1°C10 Jun 1988 | 104 mm12 Jun 1962 | 216 mm1962 · driest 15 mm in 1966 | 109 |
| July | 41.7°C28 Jul 1930 | 1.1°C1 Jul 1988 | 143 mm20 Jul 1973 | 280 mm1961 · driest 26 mm in 1999 | 106 |
| August | 40.6°C1 Aug 1999 | -1.1°C31 Aug 1986 | 101 mm4 Aug 1933 | 212 mm1979 · driest 10 mm in 2002 | 107 |
| September | 38.3°C3 Sep 1953 | -2.8°C24 Sep 1974 | 95 mm17 Sep 1995 | 268 mm2006 · driest 5 mm in 2019 | 107 |
| October | 33.9°C7 Oct 1941 | -12.2°C14 Oct 1988 | 72 mm22 Oct 1929 | 173 mm2006 · driest 3 mm in 1963 | 104 |
| November | 29.4°C5 Nov 1948 | -16.7°C30 Nov 1929 | 84 mm4 Nov 2004 | 208 mm1921 · driest 13 mm in 1976 | 104 |
| December | 27.8°C4 Dec 1982 | -27.8°C23 Dec 1989 | 71 mm3 Dec 1991 | 234 mm1990 · driest 10 mm in 1965 | 103 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 23 | 3 | 2 |
| February | <1 | 0 | 22 | 3 | <1 |
| March | 2 | <1 | 18 | 4 | <1 |
| April | 8 | 1 | 7 | 3 | 0 |
| May | 17 | 6 | <1 | 4 | 0 |
| June | 25 | 14 | 0 | 4 | 0 |
| July | 28 | 19 | 0 | 4 | 0 |
| August | 29 | 17 | 0 | 3 | 0 |
| September | 20 | 8 | <1 | 3 | 0 |
| October | 8 | 1 | 5 | 3 | 0 |
| November | <1 | 0 | 16 | 3 | 0 |
| December | <1 | 0 | 21 | 4 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 80); on 2011–2025 it is May (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 | 1% | 33% | 10% | 39% | 2.4–10.2°C |
| February | 4% | 33% | 10% | 43% | 4.2–12.3°C |
| March | 15% | 35% | 12% | 48% | 10.3–17.8°C |
| April | 37% | 34% | 11% | 45% | 17.3–22.9°C |
| May | 57% | 35% | 12% | 45% | 22.5–27.8°C |
| June | 69% | 31% | 12% | 37% | 27.4–31.2°C |
| July | 70% | 30% | 13% | 35% | 29.0–32.8°C |
| August | 73% | 27% | 10% | 28% | 28.3–32.0°C |
| September | 73% | 23% | 9% | 22% | 24.7–29.9°C |
| October | 50% | 23% | 7% | 24% | 18.3–23.9°C |
| November | 15% | 29% | 9% | 35% | 11.1–16.9°C |
| December | 2% | 30% | 9% | 37% | 5.1–11.6°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