September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Ava: typically 26.4°C by day, 14°C at night, with 106 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 79 — days reach only 6.3°C, 18° below the 24°C the score treats as ideal, and nights drop to -4.8°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 | 6.3°C | -4.8°C | 81 mm | 4.9 | 9 h 53 | 5 | Strong coverage |
| February | 9.4°C | -2.6°C | 71 mm | 4.4 | 10 h 46 | 14 | Strong coverage |
| March | 14.6°C | 1.9°C | 106 mm | 5.9 | 11 h 51 | 33 | Strong coverage |
| April | 20.2°C | 7.1°C | 107 mm | 5.3 | 13 h 05 | 61 | Strong coverage |
| May | 23.9°C | 12.2°C | 128 mm | 7.6 | 14 h 07 | 78 | Strong coverage |
| June | 28.2°C | 17.1°C | 93 mm | 5.9 | 14 h 41 | 71 | Strong coverage |
| July | 30.6°C | 19.1°C | 101 mm | 5.8 | 14 h 28 | 59 | Strong coverage |
| August | 30.4°C | 18.4°C | 73 mm | 4.8 | 13 h 34 | 66 | Strong coverage |
| September | 26.4°C | 14°C | 106 mm | 4.6 | 12 h 22 | 79 | Strong coverage |
| October | 20.5°C | 7.9°C | 92 mm | 4.8 | 11 h 11 | 66 | Strong coverage |
| November | 13.8°C | 2°C | 116 mm | 5.4 | 10 h 08 | 30 | Strong coverage |
| December | 8.1°C | -2.7°C | 72 mm | 4 | 9 h 38 | 10 | 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 | 28.9°C25 Jan 1950 | -23.3°C24 Jan 1963 | 104 mm1 Jan 1999 | 232 mm1950 · driest 2 mm in 1986 | 80 |
| February | 28.3°C28 Feb 2024 | -23.3°C16 Feb 2021 | 88 mm21 Feb 1945 | 240 mm1945 · driest 0 mm in 1991 | 78 |
| March | 36.1°C23 Mar 2026 | -18.9°C3 Mar 1943 | 115 mm19 Mar 2008 | 316 mm2008 · driest 22 mm in 2001 | 78 |
| April | 33.9°C21 Apr 1963 | -6.7°C7 Apr 2007 | 102 mm19 Apr 2013 | 374 mm2011 · driest 9 mm in 2000 | 80 |
| May | 35.0°C26 May 1953 | -1.7°C2 May 1961 | 121 mm1 May 2019 | 306 mm2025 · driest 3 mm in 1994 | 81 |
| June | 41.1°C29 Jun 2012 | 4.4°C24 Jun 1974 | 77 mm7 Jun 1974 | 244 mm1948 · driest 8 mm in 2004 | 79 |
| July | 43.9°C14 Jul 1954 | 9.4°C14 Jul 1967 | 137 mm15 Jul 2010 | 271 mm2010 · driest 12 mm in 1953 | 79 |
| August | 43.3°C26 Aug 1943 | 8.9°C29 Aug 1988 | 133 mm24 Aug 1965 | 251 mm1965 · driest 0 mm in 1998 | 78 |
| September | 40.0°C1 Sep 2000 | -0.6°C23 Sep 1989 | 131 mm24 Sep 1993 | 410 mm1993 · driest 0 mm in 1999 | 79 |
| October | 35.0°C2 Oct 1953 | -7.2°C20 Oct 1989 | 113 mm17 Oct 1941 | 306 mm1941 · driest 0 mm in 1965 | 80 |
| November | 29.4°C6 Nov 1950 | -15.6°C17 Nov 1959 | 219 mm5 Nov 2024 | 353 mm1946 · driest 0 mm in 1976 | 81 |
| December | 27.8°C28 Dec 2025 | -30.0°C23 Dec 1989 | 131 mm18 Dec 2021 | 213 mm2015 · driest 0 mm in 1998 | 80 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 3 | <1 |
| February | <1 | 0 | 19 | 2 | <1 |
| March | 2 | <1 | 11 | 3 | <1 |
| April | 7 | <1 | 2 | 3 | 0 |
| May | 14 | 2 | 0 | 4 | 0 |
| June | 24 | 10 | 0 | 3 | 0 |
| July | 27 | 18 | 0 | 3 | 0 |
| August | 27 | 17 | 0 | 2 | 0 |
| September | 19 | 7 | 0 | 3 | 0 |
| October | 8 | <1 | 2 | 3 | 0 |
| November | <1 | 0 | 11 | 3 | <1 |
| December | 0 | 0 | 21 | 2 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 4% | 16% | 7% | 11% | 4.2–10.7°C |
| February | 9% | 19% | 8% | 16% | 5.8–14.0°C |
| March | 23% | 23% | 11% | 21% | 10.9–18.9°C |
| April | 49% | 24% | 12% | 23% | 18.6–23.6°C |
| May | 65% | 27% | 14% | 30% | 22.2–26.7°C |
| June | 77% | 24% | 11% | 23% | 26.9–30.5°C |
| July | 80% | 20% | 10% | 16% | 29.5–33.8°C |
| August | 82% | 19% | 9% | 14% | 28.5–33.8°C |
| September | 78% | 19% | 10% | 16% | 24.8–30.0°C |
| October | 59% | 17% | 9% | 15% | 19.0–24.3°C |
| November | 21% | 19% | 11% | 14% | 11.2–17.1°C |
| December | 4% | 16% | 8% | 12% | 6.0–11.6°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