September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Mill Shoals: typically 27.5°C by day, 13.6°C at night, with 74 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · July · June
October · April · September
The weakest month is January, scoring 5 against September’s 78 — days reach only 4.4°C, 20° 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 | 4.4°C | -4.9°C | 84 mm | 7.7 | 9 h 46 | 5 | Strong coverage |
| February | 7.5°C | -3°C | 68 mm | 6.9 | 10 h 42 | 5 | Strong coverage |
| March | 13.3°C | 1.6°C | 107 mm | 9.2 | 11 h 50 | 25 | Strong coverage |
| April | 20°C | 7.2°C | 126 mm | 10 | 13 h 08 | 54 | Strong coverage |
| May | 25°C | 12.5°C | 127 mm | 10.6 | 14 h 13 | 73 | Strong coverage |
| June | 29.9°C | 17.1°C | 116 mm | 8.9 | 14 h 49 | 60 | Strong coverage |
| July | 31.4°C | 19°C | 97 mm | 7.7 | 14 h 35 | 55 | Strong coverage |
| August | 31°C | 17.9°C | 89 mm | 6.2 | 13 h 39 | 61 | Strong coverage |
| September | 27.5°C | 13.6°C | 74 mm | 5.8 | 12 h 23 | 78 | Strong coverage |
| October | 20.8°C | 7.5°C | 97 mm | 7 | 11 h 08 | 64 | Strong coverage |
| November | 12.8°C | 1.7°C | 97 mm | 7.8 | 10 h 03 | 26 | Strong coverage |
| December | 6.6°C | -2.5°C | 84 mm | 8 | 9 h 31 | 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 | 25.0°C24 Jan 1943 | -30.6°C17 Jan 1977 | 85 mm5 Jan 1917 | 311 mm1949 · driest 8 mm in 1986 | 128 |
| February | 25.6°C13 Feb 1962 | -29.4°C9 Feb 1899 | 91 mm7 Feb 2019 | 191 mm2018 · driest 0 mm in 1947 | 128 |
| March | 32.8°C24 Mar 1929 | -22.2°C5 Mar 1978 | 156 mm25 Mar 1913 | 325 mm1945 · driest 0 mm in 1920 | 127 |
| April | 32.8°C24 Apr 1925 | -8.3°C7 Apr 1990 | 112 mm5 Apr 2025 | 285 mm2025 · driest 0 mm in 1915 | 128 |
| May | 36.7°C28 May 1911 | -1.7°C1 May 1903 | 172 mm8 May 1961 | 320 mm1961 · driest 3 mm in 1914 | 128 |
| June | 42.2°C28 Jun 2012 | 3.9°C1 Jun 1972 | 105 mm16 Jun 2019 | 262 mm2000 · driest 5 mm in 2012 | 128 |
| July | 45.0°C22 Jul 1901 | 7.2°C26 Jul 1911 | 141 mm24 Jul 1969 | 318 mm1969 · driest 5 mm in 1930 | 129 |
| August | 42.2°C4 Aug 1918 | 6.1°C30 Aug 1986 | 127 mm26 Aug 2004 | 227 mm2004 · driest 5 mm in 1943 | 127 |
| September | 40.6°C15 Sep 1939 | -3.9°C30 Sep 1899 | 103 mm3 Sep 1926 | 262 mm1926 · driest 1 mm in 2004 | 129 |
| October | 35.6°C7 Oct 2007 | -7.2°C29 Oct 1952 | 165 mm27 Oct 1919 | 407 mm1919 · driest 0 mm in 1908 | 126 |
| November | 30.0°C1 Nov 2016 | -19.4°C30 Nov 1929 | 124 mm14 Nov 1993 | 271 mm1985 · driest 10 mm in 1999 | 128 |
| December | 23.3°C2 Dec 1982 | -27.8°C22 Dec 1989 | 102 mm3 Dec 1982 | 249 mm1982 · driest 10 mm in 1955 | 130 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 3 | 2 |
| February | 0 | 0 | 20 | 2 | 2 |
| March | 2 | 0 | 14 | 4 | <1 |
| April | 7 | <1 | 3 | 4 | 0 |
| May | 18 | 6 | <1 | 4 | 0 |
| June | 27 | 16 | 0 | 4 | 0 |
| July | 30 | 22 | 0 | 3 | 0 |
| August | 30 | 20 | 0 | 3 | 0 |
| September | 21 | 10 | <1 | 2 | 0 |
| October | 9 | 2 | 3 | 3 | <1 |
| November | <1 | 0 | 13 | 3 | <1 |
| December | 0 | 0 | 21 | 3 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 82); on 2011–2025 it is May (81). 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% | 23% | 9% | 23% | 1.4–8.5°C |
| February | 3% | 23% | 8% | 25% | 2.8–10.8°C |
| March | 15% | 29% | 12% | 33% | 9.4–17.0°C |
| April | 36% | 32% | 12% | 41% | 17.0–22.0°C |
| May | 60% | 31% | 12% | 37% | 22.5–27.7°C |
| June | 73% | 27% | 12% | 29% | 27.8–32.6°C |
| July | 77% | 23% | 10% | 22% | 29.8–34.4°C |
| August | 79% | 21% | 9% | 19% | 29.1–33.7°C |
| September | 76% | 20% | 9% | 18% | 25.3–30.4°C |
| October | 52% | 20% | 8% | 21% | 18.7–24.4°C |
| November | 14% | 24% | 10% | 24% | 10.3–16.0°C |
| December | 1% | 24% | 9% | 26% | 3.5–10.4°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