September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Cowee: typically 25.8°C by day, 13°C at night, with 96 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · May · April
The weakest month is January, scoring 5 against September’s 77 — days reach only 9.3°C, 15° below the 24°C the score treats as ideal, and nights drop to -3.8°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 | 9.3°C | -3.8°C | 131 mm | 9.2 | 10 h 01 | 5 | Good coverage |
| February | 11.6°C | -2.2°C | 118 mm | 8.6 | 10 h 51 | 11 | Good coverage |
| March | 15.7°C | 1.2°C | 132 mm | 10.8 | 11 h 52 | 27 | Good coverage |
| April | 20.7°C | 4.9°C | 137 mm | 9.1 | 13 h 02 | 51 | Good coverage |
| May | 24.3°C | 9.9°C | 108 mm | 9.8 | 14 h | 73 | Good coverage |
| June | 27.5°C | 14.7°C | 129 mm | 12 | 14 h 31 | 67 | Good coverage |
| July | 29.1°C | 17°C | 133 mm | 12.1 | 14 h 19 | 58 | Strong coverage |
| August | 28.5°C | 16.5°C | 123 mm | 10.3 | 13 h 29 | 63 | Strong coverage |
| September | 25.8°C | 13°C | 96 mm | 7.8 | 12 h 21 | 77 | Good coverage |
| October | 21.1°C | 6.3°C | 88 mm | 5.5 | 11 h 14 | 65 | Good coverage |
| November | 15.3°C | 0.2°C | 108 mm | 6.9 | 10 h 16 | 31 | Good coverage |
| December | 10.7°C | -2.2°C | 144 mm | 9.2 | 9 h 47 | 5 | Good 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 | 25.6°C1 Jan 1952 | -26.1°C21 Jan 1985 | 114 mm26 Jan 1996 | 298 mm2013 · driest 7 mm in 2026 | 81 |
| February | 25.6°C27 Feb 1996 | -20.6°C17 Feb 1958 | 104 mm16 Feb 1990 | 251 mm2020 · driest 15 mm in 1978 | 81 |
| March | 29.4°C14 Mar 1967 | -19.4°C3 Mar 1980 | 90 mm26 Mar 2021 | 294 mm1980 · driest 34 mm in 2016 | 81 |
| April | 32.8°C26 Apr 1986 | -8.3°C20 Apr 1983 | 128 mm12 Apr 2020 | 240 mm2020 · driest 28 mm in 1975 | 80 |
| May | 32.8°C19 May 1962 | -3.9°C4 May 1971 | 126 mm28 May 1973 | 285 mm1976 · driest 14 mm in 1951 | 81 |
| June | 37.8°C26 Jun 1983 | 1.1°C2 Jun 1966 | 88 mm4 Jun 1967 | 226 mm1989 · driest 13 mm in 2025 | 79 |
| July | 38.3°C29 Jul 1952 | 7.2°C11 Jul 1963 | 84 mm14 Jul 1990 | 310 mm2007 · driest 22 mm in 1983 | 81 |
| August | 37.2°C9 Aug 1980 | 4.4°C29 Aug 1968 | 80 mm18 Aug 2021 | 266 mm1992 · driest 12 mm in 2024 | 80 |
| September | 36.7°C5 Sep 1954 | -2.8°C30 Sep 1967 | 129 mm29 Sep 1964 | 327 mm2009 · driest 4 mm in 1984 | 78 |
| October | 32.8°C5 Oct 1954 | -9.4°C30 Oct 1952 | 148 mm3 Oct 1964 | 276 mm1964 · driest 0 mm in 1963 | 81 |
| November | 27.8°C2 Nov 1974 | -16.1°C25 Nov 1950 | 105 mm28 Nov 1948 | 333 mm1948 · driest 18 mm in 2012 | 80 |
| December | 25.6°C31 Dec 1951 | -22.2°C13 Dec 1962 | 78 mm23 Dec 2013 | 335 mm2015 · driest 11 mm in 1965 | 82 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 21 | 4 | <1 |
| February | <1 | 0 | 19 | 4 | <1 |
| March | 1 | 0 | 13 | 5 | <1 |
| April | 7 | <1 | 5 | 4 | 0 |
| May | 16 | 1 | <1 | 4 | 0 |
| June | 25 | 6 | 0 | 5 | 0 |
| July | 29 | 13 | 0 | 4 | 0 |
| August | 29 | 9 | 0 | 4 | 0 |
| September | 20 | 3 | 0 | 3 | 0 |
| October | 6 | <1 | 5 | 3 | 0 |
| November | <1 | 0 | 16 | 3 | 0 |
| December | 0 | 0 | 20 | 5 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 33% | 15% | 37% | 6.8–12.6°C |
| February | 5% | 33% | 16% | 38% | 9.2–15.4°C |
| March | 21% | 35% | 17% | 42% | 13.0–18.6°C |
| April | 48% | 30% | 13% | 33% | 19.0–23.3°C |
| May | 61% | 32% | 12% | 38% | 23.1–26.5°C |
| June | 64% | 35% | 14% | 42% | 26.3–29.7°C |
| July | 61% | 38% | 14% | 48% | 27.6–31.0°C |
| August | 67% | 33% | 13% | 38% | 27.7–30.6°C |
| September | 71% | 27% | 12% | 26% | 24.6–28.0°C |
| October | 59% | 21% | 9% | 18% | 19.8–23.5°C |
| November | 21% | 27% | 12% | 27% | 13.3–18.7°C |
| December | 3% | 30% | 15% | 34% | 8.1–13.8°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