September
September · May · August
United States · 1991–2020
September leads for comfortable weather in West Baden Springs: typically 26.3°C by day, 12.1°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · August
August · July · June
October · April · September
The weakest month is January, scoring 5 against September’s 75 — days reach only 4.5°C, 19° 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 | 4.5°C | -6.1°C | 91 mm | 7.1 | 9 h 45 | 5 | Strong coverage |
| February | 7.1°C | -4.7°C | 86 mm | 6.1 | 10 h 42 | 5 | Strong coverage |
| March | 12.5°C | -0.4°C | 113 mm | 8.5 | 11 h 50 | 19 | Strong coverage |
| April | 19.5°C | 5°C | 134 mm | 9.3 | 13 h 09 | 47 | Strong coverage |
| May | 24.5°C | 11.1°C | 133 mm | 9.6 | 14 h 15 | 72 | Strong coverage |
| June | 28.6°C | 16°C | 122 mm | 8.6 | 14 h 51 | 66 | Strong coverage |
| July | 30.3°C | 17.9°C | 108 mm | 7.7 | 14 h 36 | 60 | Strong coverage |
| August | 30°C | 16.7°C | 80 mm | 6.1 | 13 h 40 | 68 | Strong coverage |
| September | 26.3°C | 12.1°C | 100 mm | 5.7 | 12 h 23 | 75 | Strong coverage |
| October | 20.1°C | 5.5°C | 78 mm | 5.7 | 11 h 07 | 62 | Strong coverage |
| November | 12.8°C | 0.2°C | 95 mm | 6.8 | 10 h 01 | 25 | Strong coverage |
| December | 6.6°C | -3.8°C | 98 mm | 7.5 | 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 | 23.9°C24 Jan 1943 | -33.9°C19 Jan 1994 | 102 mm14 Jan 1937 | 441 mm1937 · driest 15 mm in 1946 | 119 |
| February | 25.6°C10 Feb 1932 | -32.2°C2 Feb 1951 | 106 mm14 Feb 1908 | 215 mm2018 · driest 6 mm in 1947 | 117 |
| March | 31.1°C24 Mar 1929 | -27.2°C6 Mar 1960 | 133 mm18 Mar 2008 | 363 mm1964 · driest 7 mm in 1986 | 119 |
| April | 32.2°C23 Apr 1925 | -11.1°C9 Apr 1917 | 103 mm29 Apr 1996 | 350 mm2011 · driest 22 mm in 1962 | 119 |
| May | 35.6°C28 May 1914 | -3.9°C1 May 1963 | 124 mm23 May 1902 | 309 mm1927 · driest 4 mm in 1988 | 122 |
| June | 40.6°C29 Jun 2012 | 1.1°C11 Jun 1913 | 108 mm19 Jun 1964 | 323 mm1949 · driest 5 mm in 2012 | 122 |
| July | 43.9°C22 Jul 1901 | 5.6°C7 Jul 1983 | 146 mm21 Jul 1973 | 272 mm1979 · driest 5 mm in 1919 | 120 |
| August | 41.1°C10 Aug 1911 | 4.4°C27 Aug 1910 | 105 mm10 Aug 1899 | 224 mm1977 · driest 13 mm in 1953 | 120 |
| September | 40.6°C2 Sep 1953 | -3.9°C29 Sep 1942 | 108 mm11 Sep 1905 | 321 mm1996 · driest 7 mm in 2010 | 119 |
| October | 35.6°C5 Oct 1900 | -11.1°C29 Oct 1925 | 111 mm5 Oct 1910 | 345 mm1919 · driest 1 mm in 1908 | 120 |
| November | 29.4°C1 Nov 1950 | -20.6°C30 Nov 1958 | 98 mm1 Nov 2018 | 235 mm1985 · driest 11 mm in 1904 | 120 |
| December | 25.0°C2 Dec 1982 | -30.6°C11 Dec 1917 | 87 mm23 Dec 1921 | 208 mm1921 · driest 9 mm in 1989 | 120 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 3 | 3 |
| February | <1 | 0 | 22 | 3 | 2 |
| March | 1 | 0 | 17 | 4 | <1 |
| April | 6 | <1 | 6 | 5 | 0 |
| May | 16 | 4 | <1 | 4 | 0 |
| June | 26 | 13 | 0 | 4 | 0 |
| July | 30 | 18 | 0 | 3 | 0 |
| August | 29 | 17 | 0 | 3 | 0 |
| September | 20 | 7 | <1 | 3 | 0 |
| October | 7 | <1 | 5 | 3 | 0 |
| November | <1 | 0 | 16 | 4 | <1 |
| December | 0 | 0 | 22 | 3 | 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 (80). 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% | 27% | 11% | 29% | 1.3–8.7°C |
| February | 2% | 27% | 10% | 30% | 3.0–10.7°C |
| March | 12% | 31% | 13% | 38% | 9.2–16.8°C |
| April | 32% | 34% | 13% | 44% | 16.5–21.3°C |
| May | 58% | 31% | 13% | 39% | 22.0–27.0°C |
| June | 70% | 30% | 13% | 35% | 27.1–31.1°C |
| July | 75% | 26% | 11% | 27% | 29.3–33.5°C |
| August | 77% | 23% | 10% | 22% | 28.8–32.9°C |
| September | 74% | 22% | 10% | 19% | 24.6–29.4°C |
| October | 48% | 21% | 9% | 20% | 18.6–23.3°C |
| November | 12% | 26% | 11% | 28% | 10.0–15.6°C |
| December | <1% | 27% | 11% | 32% | 3.3–9.7°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