September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Chilhowie: typically 26.1°C by day, 12.2°C at night, with 88 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 76 — days reach only 6.8°C, 17° below the 24°C the score treats as ideal, and nights drop to -4.9°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 | 6.8°C | -4.9°C | 97 mm | 10.3 | 9 h 54 | 5 | Strong coverage |
| February | 8.9°C | -3.8°C | 96 mm | 9.7 | 10 h 47 | 5 | Strong coverage |
| March | 13.9°C | -0.5°C | 110 mm | 10.8 | 11 h 51 | 21 | Strong coverage |
| April | 19.7°C | 3.9°C | 109 mm | 10.5 | 13 h 05 | 49 | Strong coverage |
| May | 24°C | 9.5°C | 109 mm | 11.9 | 14 h 07 | 72 | Strong coverage |
| June | 27.5°C | 14.1°C | 112 mm | 12 | 14 h 40 | 68 | Strong coverage |
| July | 29.1°C | 16.5°C | 130 mm | 11.5 | 14 h 27 | 59 | Strong coverage |
| August | 28.7°C | 15.9°C | 115 mm | 10.3 | 13 h 34 | 65 | Strong coverage |
| September | 26.1°C | 12.2°C | 88 mm | 7.6 | 12 h 22 | 76 | Strong coverage |
| October | 20.5°C | 5°C | 74 mm | 7.2 | 11 h 11 | 61 | Strong coverage |
| November | 14.1°C | -0.8°C | 77 mm | 8 | 10 h 09 | 29 | Strong coverage |
| December | 8.6°C | -3.3°C | 105 mm | 10.3 | 9 h 39 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.1°C1 Jan 1952 | -24.4°C13 Jan 1895 | 64 mm27 Jan 1996 | 239 mm1957 · driest 19 mm in 1896 | 68 |
| February | 28.9°C8 Feb 1925 | -28.3°C5 Feb 1996 | 78 mm16 Feb 2025 | 250 mm2019 · driest 11 mm in 1968 | 69 |
| March | 30.0°C25 Mar 1929 | -20.0°C15 Mar 1993 | 114 mm18 Mar 2002 | 252 mm1955 · driest 29 mm in 1925 | 68 |
| April | 32.2°C30 Apr 2017 | -6.7°C8 Apr 1950 | 89 mm13 Apr 2020 | 229 mm2020 · driest 29 mm in 1995 | 68 |
| May | 35.0°C6 May 1924 | -1.7°C10 May 2020 | 64 mm24 May 2022 | 232 mm1950 · driest 32 mm in 2015 | 68 |
| June | 37.2°C29 Jun 1952 | 2.8°C2 Jun 1966 | 98 mm11 Jun 1923 | 222 mm1923 · driest 32 mm in 1993 | 69 |
| July | 38.9°C21 Jul 1926 | 5.6°C10 Jul 1961 | 98 mm30 Jul 1966 | 239 mm2001 · driest 41 mm in 1970 | 69 |
| August | 37.8°C30 Aug 1924 | 7.2°C31 Aug 1999 | 72 mm10 Aug 1998 | 229 mm2023 · driest 28 mm in 1995 | 69 |
| September | 37.8°C7 Sep 1954 | -0.6°C28 Sep 2021 | 102 mm26 Sep 2024 | 279 mm2024 · driest 7 mm in 1895 | 69 |
| October | 34.4°C7 Oct 1924 | -8.3°C27 Oct 1962 | 65 mm20 Oct 2019 | 172 mm2014 · driest 1 mm in 1963 | 68 |
| November | 28.9°C4 Nov 2003 | -16.7°C30 Nov 1929 | 64 mm19 Nov 2003 | 186 mm2003 · driest 12 mm in 2001 | 69 |
| December | 26.1°C6 Dec 2001 | -21.1°C13 Dec 1962 | 68 mm1 Dec 2019 | 245 mm1926 · driest 10 mm in 1965 | 70 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 3 | 2 |
| February | <1 | 0 | 22 | 3 | 2 |
| March | 1 | 0 | 18 | 4 | <1 |
| April | 6 | <1 | 7 | 4 | <1 |
| May | 16 | 2 | <1 | 4 | 0 |
| June | 24 | 8 | 0 | 4 | 0 |
| July | 28 | 14 | 0 | 5 | 0 |
| August | 28 | 12 | 0 | 4 | 0 |
| September | 20 | 6 | 0 | 3 | 0 |
| October | 7 | <1 | 6 | 3 | <1 |
| November | <1 | 0 | 19 | 3 | <1 |
| December | 0 | 0 | 23 | 4 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 35% | 10% | 46% | 4.0–9.7°C |
| February | 3% | 36% | 13% | 48% | 5.6–12.6°C |
| March | 13% | 35% | 12% | 43% | 10.9–16.7°C |
| April | 38% | 34% | 12% | 44% | 17.3–22.1°C |
| May | 53% | 38% | 13% | 52% | 21.8–26.4°C |
| June | 61% | 38% | 12% | 48% | 26.2–29.5°C |
| July | 62% | 38% | 14% | 52% | 27.8–31.1°C |
| August | 66% | 34% | 13% | 40% | 27.6–30.7°C |
| September | 71% | 25% | 9% | 25% | 24.5–29.0°C |
| October | 51% | 23% | 8% | 23% | 19.0–23.1°C |
| November | 14% | 29% | 9% | 36% | 11.3–17.0°C |
| December | 2% | 33% | 11% | 40% | 5.5–11.6°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