September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Adair: typically 24.8°C by day, 10.2°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
September · October · May
The weakest month is January, scoring 5 against September’s 78 — days reach only -1.3°C, 25° 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 | -1.3°C | -12.4°C | 24 mm | 3.5 | 9 h 29 | 5 | Strong coverage |
| February | 1.4°C | -10.1°C | 27 mm | 3.7 | 10 h 32 | 5 | Strong coverage |
| March | 8.6°C | -3.6°C | 47 mm | 4.9 | 11 h 48 | 12 | Strong coverage |
| April | 16.1°C | 2.4°C | 104 mm | 8.5 | 13 h 16 | 37 | Strong coverage |
| May | 22.1°C | 9.1°C | 152 mm | 11.4 | 14 h 29 | 59 | Strong coverage |
| June | 27.5°C | 15°C | 139 mm | 9.4 | 15 h 10 | 68 | Strong coverage |
| July | 29.5°C | 17.2°C | 111 mm | 7.6 | 14 h 54 | 63 | Strong coverage |
| August | 28.2°C | 15.4°C | 125 mm | 8 | 13 h 50 | 68 | Strong coverage |
| September | 24.8°C | 10.2°C | 90 mm | 6.4 | 12 h 25 | 78 | Strong coverage |
| October | 17.5°C | 3.2°C | 72 mm | 6.2 | 11 h 01 | 49 | Strong coverage |
| November | 8.7°C | -3.4°C | 45 mm | 4 | 9 h 47 | 14 | Strong coverage |
| December | 1.6°C | -9.1°C | 32 mm | 4 | 9 h 11 | 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 | 20.0°C25 Jan 1981 | -37.2°C12 Jan 1912 | 76 mm30 Jan 2004 | 101 mm2004 · driest 0 mm in 1935 | 122 |
| February | 25.0°C24 Feb 1930 | -37.2°C2 Feb 1996 | 51 mm10 Feb 2002 | 78 mm1976 · driest 0 mm in 1930 | 123 |
| March | 32.8°C22 Mar 2026 | -33.9°C1 Mar 1962 | 67 mm26 Mar 1995 | 152 mm1990 · driest 0 mm in 1899 | 127 |
| April | 35.6°C23 Apr 2009 | -13.9°C3 Apr 1936 | 173 mm27 Apr 2009 | 235 mm2007 · driest 0 mm in 1928 | 127 |
| May | 41.7°C30 May 1934 | -7.2°C4 May 1907 | 165 mm24 May 2007 | 311 mm2007 · driest 0 mm in 1929 | 130 |
| June | 41.1°C10 Jun 1933 | 1.7°C1 Jun 2001 | 151 mm25 Jun 2015 | 387 mm2010 · driest 0 mm in 1922 | 129 |
| July | 45.0°C25 Jul 1936 | 4.4°C9 Jul 1895 | 171 mm28 Jul 2008 | 351 mm1958 · driest 0 mm in 1924 | 127 |
| August | 45.0°C5 Aug 1934 | 2.2°C28 Aug 1935 | 134 mm22 Aug 1954 | 301 mm1993 · driest 0 mm in 1929 | 126 |
| September | 38.9°C6 Sep 1939 | -7.2°C30 Sep 1899 | 170 mm15 Sep 1992 | 278 mm1992 · driest 0 mm in 1908 | 127 |
| October | 35.6°C4 Oct 1922 | -17.8°C30 Oct 1925 | 76 mm4 Oct 1919 | 201 mm2009 · driest 0 mm in 1924 | 125 |
| November | 28.3°C1 Nov 1968 | -26.7°C7 Nov 1991 | 111 mm23 Nov 1931 | 201 mm1931 · driest 0 mm in 1907 | 122 |
| December | 22.2°C16 Dec 2021 | -35.0°C24 Dec 1989 | 71 mm14 Dec 2015 | 130 mm2015 · driest 0 mm in 1921 | 123 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 3 |
| February | 0 | 0 | 26 | <1 | 3 |
| March | <1 | 0 | 23 | 2 | 1 |
| April | 4 | <1 | 10 | 3 | <1 |
| May | 11 | 3 | 1 | 5 | <1 |
| June | 22 | 9 | 0 | 4 | 0 |
| July | 28 | 14 | 0 | 3 | 0 |
| August | 25 | 10 | 0 | 4 | 0 |
| September | 16 | 5 | 1 | 3 | 0 |
| October | 5 | <1 | 10 | 2 | <1 |
| November | <1 | 0 | 22 | 2 | <1 |
| December | 0 | 0 | 29 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 10% | 2% | 5% | -5.1–3.7°C |
| February | <1% | 12% | 3% | 7% | -2.9–5.9°C |
| March | 8% | 16% | 5% | 15% | 4.1–12.1°C |
| April | 27% | 23% | 8% | 27% | 13.2–19.2°C |
| May | 52% | 28% | 12% | 35% | 19.9–25.8°C |
| June | 71% | 27% | 12% | 33% | 25.5–30.2°C |
| July | 79% | 21% | 9% | 22% | 28.0–33.3°C |
| August | 78% | 22% | 10% | 21% | 26.4–31.5°C |
| September | 68% | 19% | 8% | 19% | 22.1–27.3°C |
| October | 39% | 16% | 6% | 16% | 15.4–21.4°C |
| November | 6% | 12% | 4% | 8% | 5.3–12.2°C |
| December | 0% | 11% | 3% | 6% | -2.9–5.2°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