September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Midway: typically 26.9°C by day, 13.7°C at night, with 78 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · July · September
October · April · May
The weakest month is January, scoring 5 against September’s 78 — days reach only 8°C, 16° below the 24°C the score treats as ideal, and nights drop to -2.9°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 | 8°C | -2.9°C | 95 mm | 10 | 9 h 56 | 5 | Strong coverage |
| February | 10.5°C | -1.4°C | 101 mm | 10.1 | 10 h 48 | 11 | Strong coverage |
| March | 15°C | 1.7°C | 98 mm | 10.7 | 11 h 51 | 30 | Strong coverage |
| April | 20.6°C | 6.1°C | 99 mm | 10.1 | 13 h 04 | 58 | Strong coverage |
| May | 24.8°C | 11.6°C | 115 mm | 10.6 | 14 h 04 | 73 | Strong coverage |
| June | 28.2°C | 16°C | 130 mm | 11.2 | 14 h 37 | 64 | Strong coverage |
| July | 29.7°C | 18.1°C | 146 mm | 11.6 | 14 h 24 | 52 | Strong coverage |
| August | 29.5°C | 17.4°C | 105 mm | 9.9 | 13 h 32 | 61 | Strong coverage |
| September | 26.9°C | 13.7°C | 78 mm | 7.5 | 12 h 22 | 78 | Strong coverage |
| October | 21.2°C | 7.3°C | 69 mm | 6.8 | 11 h 12 | 69 | Strong coverage |
| November | 14.8°C | 1.3°C | 83 mm | 8.2 | 10 h 11 | 34 | Strong coverage |
| December | 9.6°C | -1.3°C | 97 mm | 10.3 | 9 h 42 | 8 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 25.6°C31 Jan 2002 | -29.4°C21 Jan 1985 | 72 mm14 Jan 2013 | 238 mm2013 · driest 12 mm in 1896 | 62 |
| February | 27.8°C28 Feb 1944 | -27.2°C14 Feb 1899 | 64 mm27 Feb 1902 | 223 mm2019 · driest 12 mm in 1906 | 59 |
| March | 28.9°C23 Mar 1907 | -18.9°C4 Mar 1943 | 69 mm27 Mar 1994 | 272 mm1899 · driest 10 mm in 2016 | 60 |
| April | 33.9°C17 Apr 1896 | -6.7°C5 Apr 1944 | 81 mm13 Apr 2020 | 216 mm1998 · driest 17 mm in 1942 | 63 |
| May | 36.1°C31 May 1895 | -2.2°C10 May 1906 | 86 mm20 May 1942 | 204 mm1996 · driest 26 mm in 1941 | 65 |
| June | 38.9°C3 Jun 1895 | 3.9°C1 Jun 1984 | 89 mm19 Jun 1898 | 277 mm1994 · driest 17 mm in 2024 | 63 |
| July | 40.6°C2 Jul 1898 | 7.8°C1 Jul 1988 | 97 mm30 Jul 1940 | 268 mm1896 · driest 16 mm in 1990 | 63 |
| August | 37.2°C23 Aug 2007 | 6.1°C9 Aug 1989 | 103 mm5 Aug 2012 | 280 mm1901 · driest 23 mm in 1896 | 63 |
| September | 36.7°C3 Sep 1898 | -0.6°C30 Sep 1899 | 87 mm26 Sep 2024 | 230 mm2024 · driest 8 mm in 1903 | 62 |
| October | 33.3°C4 Oct 2019 | -5.6°C22 Oct 1987 | 46 mm15 Oct 2002 | 158 mm2002 · driest 0 mm in 2000 | 59 |
| November | 30.6°C23 Nov 1902 | -12.2°C19 Nov 2014 | 79 mm18 Nov 2003 | 204 mm2003 · driest 9 mm in 2001 | 61 |
| December | 26.7°C22 Dec 1895 | -24.4°C21 Dec 1901 | 70 mm12 Dec 1998 | 180 mm1998 · driest 28 mm in 1941 | 62 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 21 | 3 | <1 |
| February | <1 | 0 | 18 | 3 | 1 |
| March | 2 | 0 | 12 | 4 | <1 |
| April | 8 | <1 | 4 | 3 | <1 |
| May | 18 | 3 | <1 | 4 | 0 |
| June | 26 | 10 | 0 | 5 | 0 |
| July | 29 | 17 | 0 | 5 | 0 |
| August | 29 | 15 | 0 | 3 | 0 |
| September | 21 | 8 | 0 | 3 | 0 |
| October | 9 | <1 | 3 | 3 | 0 |
| November | 1 | 0 | 14 | 3 | <1 |
| December | 0 | 0 | 19 | 3 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 34% | 10% | 43% | 4.8–10.8°C |
| February | 4% | 36% | 13% | 46% | 7.3–13.4°C |
| March | 20% | 35% | 13% | 42% | 12.3–18.7°C |
| April | 42% | 34% | 11% | 40% | 17.6–23.0°C |
| May | 58% | 34% | 12% | 41% | 23.0–27.4°C |
| June | 63% | 35% | 14% | 45% | 26.7–31.0°C |
| July | 63% | 38% | 16% | 48% | 28.4–32.0°C |
| August | 69% | 33% | 12% | 37% | 27.9–31.7°C |
| September | 74% | 24% | 9% | 21% | 25.2–29.8°C |
| October | 56% | 21% | 8% | 19% | 19.2–23.9°C |
| November | 20% | 26% | 8% | 26% | 11.6–18.3°C |
| December | 4% | 33% | 11% | 38% | 7.2–12.8°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