September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Midway: typically 26°C by day, 14.4°C at night, with 87 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · June · July
October · April · September
The weakest month is January, scoring 5 against September’s 82 — days reach only 5.2°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 | 5.2°C | -3.8°C | 87 mm | 9.2 | 9 h 47 | 5 | Good coverage |
| February | 7°C | -2.6°C | 94 mm | 9.5 | 10 h 43 | 5 | Good coverage |
| March | 12.8°C | 2.2°C | 102 mm | 9.7 | 11 h 50 | 25 | Good coverage |
| April | 18.8°C | 7.3°C | 132 mm | 9.8 | 13 h 08 | 49 | Good coverage |
| May | 23.5°C | 12.9°C | 141 mm | 10 | 14 h 13 | 73 | Good coverage |
| June | 27.8°C | 17°C | 100 mm | 9 | 14 h 48 | 69 | Good coverage |
| July | 29.1°C | 18.8°C | 143 mm | 9.6 | 14 h 34 | 55 | Good coverage |
| August | 28.9°C | 18.1°C | 97 mm | 7.7 | 13 h 38 | 65 | Good coverage |
| September | 26°C | 14.4°C | 87 mm | 6.1 | 12 h 23 | 82 | Good coverage |
| October | 19.5°C | 8.2°C | 110 mm | 7.2 | 11 h 08 | 59 | Good coverage |
| November | 12.9°C | 2.3°C | 82 mm | 7.8 | 10 h 03 | 30 | Good coverage |
| December | 7.4°C | -1.2°C | 112 mm | 9.8 | 9 h 31 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.5°C11 Jan 2020 | -21.5°C22 Jan 2014 | 101 mm3 Jan 2023 | 173 mm2023 · driest 26 mm in 2016 | 23 |
| February | 25.3°C20 Feb 2018 | -26.8°C20 Feb 2015 | 70 mm16 Feb 2023 | 248 mm2018 · driest 15 mm in 2026 | 23 |
| March | 28.3°C22 Mar 2026 | -19.3°C6 Mar 2015 | 59 mm4 Mar 2015 | 174 mm2015 · driest 7 mm in 2025 | 23 |
| April | 29.0°C5 Apr 2023 | -5.2°C1 Apr 2019 | 150 mm3 Apr 2015 | 327 mm2011 · driest 34 mm in 2025 | 23 |
| May | 31.9°C27 May 2012 | -2.1°C9 May 2020 | 128 mm2 May 2010 | 307 mm2004 · driest 22 mm in 2025 | 23 |
| June | 38.3°C29 Jun 2012 | 7.7°C6 Jun 2009 | 76 mm26 Jun 2013 | 182 mm2013 · driest 26 mm in 2005 | 24 |
| July | 38.7°C7 Jul 2012 | 9.4°C29 Jul 2014 | 82 mm9 Jul 2010 | 305 mm2015 · driest 53 mm in 2005 | 24 |
| August | 38.3°C16 Aug 2007 | 7.5°C27 Aug 2025 | 66 mm11 Aug 2018 | 229 mm2021 · driest 7 mm in 2010 | 23 |
| September | 36.0°C10 Sep 2019 | 2.1°C24 Sep 2012 | 126 mm23 Sep 2006 | 232 mm2006 · driest 0 mm in 2019 | 23 |
| October | 35.2°C1 Oct 2019 | -3.4°C30 Oct 2008 | 101 mm23 Oct 2007 | 215 mm2019 · driest 11 mm in 2024 | 23 |
| November | 28.0°C1 Nov 2016 | -12.6°C13 Nov 2019 | 63 mm30 Nov 2019 | 173 mm2011 · driest 19 mm in 2009 | 23 |
| December | 22.5°C26 Dec 2016 | -21.7°C23 Dec 2022 | 60 mm16 Dec 2019 | 182 mm2015 · driest 52 mm in 2023 | 23 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 22 | 3 |
| February | <1 | 0 | 19 | 4 |
| March | <1 | 0 | 13 | 3 |
| April | 4 | 0 | 2 | 4 |
| May | 14 | 1 | <1 | 4 |
| June | 25 | 8 | 0 | 3 |
| July | 28 | 13 | 0 | 5 |
| August | 28 | 11 | 0 | 3 |
| September | 18 | 6 | 0 | 3 |
| October | 6 | <1 | 1 | 3 |
| November | <1 | 0 | 11 | 3 |
| December | 0 | 0 | 20 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 30% | 9% | 39% | 1.9–8.2°C |
| February | 1% | 32% | 12% | 41% | 2.2–12.5°C |
| March | 14% | 30% | 10% | 35% | 10.0–16.5°C |
| April | 32% | 32% | 13% | 39% | 16.6–20.9°C |
| May | 53% | 31% | 14% | 38% | 21.7–25.5°C |
| June | 70% | 29% | 11% | 33% | 26.5–29.0°C |
| July | 70% | 30% | 15% | 32% | 27.3–30.9°C |
| August | 76% | 24% | 10% | 23% | 27.2–30.9°C |
| September | 75% | 20% | 9% | 17% | 23.6–28.6°C |
| October | 41% | 23% | 10% | 25% | 17.5–22.0°C |
| November | 10% | 25% | 9% | 28% | 10.0–15.0°C |
| December | 1% | 32% | 11% | 39% | 5.9–10.3°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