September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Marshall: typically 27.9°C by day, 15°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
June · July · August
October · April · May
The weakest month is January, scoring 7 against September’s 78 — days reach only 8.6°C, 15° below the 24°C the score treats as ideal, and nights drop to -3.1°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 | 8.6°C | -3.1°C | 83 mm | 6.1 | 9 h 58 | 7 | Strong coverage |
| February | 11.1°C | -1.2°C | 88 mm | 6 | 10 h 49 | 18 | Strong coverage |
| March | 16.1°C | 3.4°C | 131 mm | 7.7 | 11 h 51 | 35 | Strong coverage |
| April | 21.2°C | 8.2°C | 129 mm | 7.5 | 13 h 03 | 61 | Strong coverage |
| May | 25°C | 13.4°C | 123 mm | 7.9 | 14 h 03 | 77 | Strong coverage |
| June | 29.6°C | 18.1°C | 84 mm | 6.2 | 14 h 35 | 66 | Strong coverage |
| July | 31.9°C | 20.3°C | 82 mm | 6.4 | 14 h 22 | 55 | Strong coverage |
| August | 31.7°C | 19.3°C | 88 mm | 6.2 | 13 h 31 | 57 | Strong coverage |
| September | 27.9°C | 15°C | 84 mm | 5.2 | 12 h 22 | 78 | Strong coverage |
| October | 22.1°C | 8.9°C | 106 mm | 6.6 | 11 h 13 | 69 | Strong coverage |
| November | 15.6°C | 3.3°C | 117 mm | 6.7 | 10 h 13 | 36 | Strong coverage |
| December | 10.2°C | -1.1°C | 88 mm | 6.2 | 9 h 44 | 15 | 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 | 26.1°C1 Jan 1952 | -31.1°C18 Jan 1930 | 194 mm24 Jan 1949 | 338 mm1949 · driest 3 mm in 2026 | 96 |
| February | 29.4°C13 Feb 1962 | -25.0°C10 Feb 1929 | 105 mm9 Feb 1966 | 213 mm2019 · driest 0 mm in 1977 | 99 |
| March | 34.4°C22 Mar 2026 | -15.0°C4 Mar 2014 | 188 mm19 Mar 2008 | 420 mm2008 · driest 15 mm in 1947 | 100 |
| April | 33.9°C21 Apr 1987 | -6.7°C4 Apr 1975 | 193 mm5 Apr 2025 | 549 mm1927 · driest 0 mm in 2010 | 98 |
| May | 35.6°C31 May 1934 | -0.6°C4 May 1954 | 138 mm10 May 1930 | 389 mm1920 · driest 6 mm in 2012 | 94 |
| June | 41.7°C29 Jun 2012 | 5.6°C1 Jun 1931 | 118 mm9 Jun 1923 | 425 mm1928 · driest 5 mm in 2010 | 98 |
| July | 45.0°C13 Jul 1954 | 7.2°C5 Jul 1915 | 127 mm17 Jul 2024 | 241 mm2024 · driest 6 mm in 1980 | 97 |
| August | 44.4°C4 Aug 2011 | 6.7°C29 Aug 1986 | 161 mm19 Aug 1915 | 385 mm1915 · driest 0 mm in 1980 | 97 |
| September | 40.6°C1 Sep 1947 | -0.6°C30 Sep 1924 | 127 mm27 Sep 1996 | 345 mm1925 · driest 3 mm in 2017 | 95 |
| October | 35.0°C3 Oct 1926 | -7.2°C21 Oct 1952 | 151 mm30 Oct 2023 | 296 mm1984 · driest 2 mm in 1989 | 94 |
| November | 30.0°C5 Nov 1978 | -13.3°C29 Nov 1976 | 128 mm5 Nov 1994 | 335 mm1994 · driest 6 mm in 1980 | 94 |
| December | 28.3°C28 Dec 2025 | -23.3°C23 Dec 1989 | 160 mm3 Dec 1982 | 255 mm2015 · driest 5 mm in 1955 | 91 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 20 | 3 | <1 |
| February | <1 | 0 | 15 | 3 | <1 |
| March | 2 | <1 | 8 | 4 | <1 |
| April | 8 | <1 | 2 | 4 | 0 |
| May | 17 | 3 | 0 | 3 | 0 |
| June | 25 | 14 | 0 | 2 | 0 |
| July | 28 | 22 | 0 | 3 | 0 |
| August | 28 | 21 | 0 | 3 | 0 |
| September | 22 | 10 | 0 | 2 | 0 |
| October | 10 | 2 | 2 | 3 | 0 |
| November | 1 | 0 | 9 | 4 | <1 |
| December | 0 | 0 | 18 | 3 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 78); on 2011–2025 it is September (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 | 5% | 18% | 8% | 14% | 5.7–12.6°C |
| February | 12% | 19% | 8% | 18% | 7.1–15.1°C |
| March | 28% | 23% | 12% | 22% | 12.7–20.1°C |
| April | 53% | 25% | 13% | 28% | 19.4–24.1°C |
| May | 67% | 27% | 14% | 31% | 23.3–27.6°C |
| June | 77% | 23% | 10% | 23% | 27.7–31.9°C |
| July | 78% | 21% | 9% | 19% | 30.6–34.8°C |
| August | 79% | 21% | 9% | 21% | 29.6–34.8°C |
| September | 78% | 19% | 9% | 16% | 25.8–30.9°C |
| October | 61% | 19% | 9% | 17% | 20.0–25.6°C |
| November | 27% | 19% | 10% | 15% | 12.6–18.9°C |
| December | 7% | 18% | 9% | 15% | 8.0–13.9°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