September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Buffville: typically 28.2°C by day, 14.3°C at night, with 99 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
July · August · September
April · October · November
The weakest month is January, scoring 5 against September’s 74 — days reach only 6.6°C, 17° below the 24°C the score treats as ideal, and nights drop to -5.9°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 | 6.6°C | -5.9°C | 28 mm | 3.2 | 9 h 50 | 5 | Strong coverage |
| February | 10.3°C | -3.2°C | 35 mm | 2.8 | 10 h 45 | 22 | Good coverage |
| March | 15.2°C | 1.4°C | 65 mm | 5.2 | 11 h 50 | 40 | Strong coverage |
| April | 20.4°C | 6.6°C | 104 mm | 6.6 | 13 h 06 | 60 | Strong coverage |
| May | 25°C | 12.7°C | 140 mm | 8 | 14 h 10 | 73 | Strong coverage |
| June | 30.1°C | 18°C | 148 mm | 7.3 | 14 h 44 | 55 | Strong coverage |
| July | 32.9°C | 20.5°C | 98 mm | 6.2 | 14 h 31 | 49 | Strong coverage |
| August | 32.3°C | 19°C | 92 mm | 5.4 | 13 h 36 | 55 | Strong coverage |
| September | 28.2°C | 14.3°C | 99 mm | 5.2 | 12 h 23 | 74 | Strong coverage |
| October | 21.8°C | 7.3°C | 93 mm | 6 | 11 h 10 | 68 | Strong coverage |
| November | 14.9°C | 1.2°C | 54 mm | 3.7 | 10 h 06 | 42 | Strong coverage |
| December | 8°C | -4.1°C | 46 mm | 3.7 | 9 h 35 | 11 | 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 | 23.9°C21 Jan 1957 | -29.4°C30 Jan 1949 | 67 mm3 Jan 1971 | 152 mm1949 · driest 0 mm in 2022 | 116 |
| February | 31.1°C12 Feb 1962 | -26.1°C17 Feb 2021 | 109 mm21 Feb 1997 | 134 mm1911 · driest 0 mm in 2006 | 115 |
| March | 34.4°C21 Mar 1916 | -21.7°C7 Mar 1943 | 80 mm5 Mar 2025 | 234 mm1973 · driest 0 mm in 2013 | 116 |
| April | 36.7°C12 Apr 1972 | -11.1°C3 Apr 1936 | 216 mm28 Apr 2024 | 315 mm1994 · driest 0 mm in 2013 | 120 |
| May | 37.2°C22 May 1956 | -3.3°C1 May 1909 | 172 mm27 May 2008 | 426 mm2019 · driest 29 mm in 1962 | 118 |
| June | 43.3°C20 Jun 1918 | 6.1°C1 Jun 1982 | 299 mm30 Jun 2007 | 580 mm2007 · driest 8 mm in 1980 | 119 |
| July | 49.4°C18 Jul 1936 | 8.3°C3 Jul 1924 | 196 mm16 Jul 2021 | 342 mm1959 · driest 0 mm in 1999 | 119 |
| August | 46.7°C6 Aug 1956 | 6.7°C29 Aug 1988 | 108 mm11 Aug 1982 | 274 mm1985 · driest 0 mm in 2000 | 118 |
| September | 43.9°C2 Sep 1939 | -3.9°C30 Sep 1984 | 169 mm23 Sep 2019 | 469 mm1945 · driest 0 mm in 1939 | 118 |
| October | 37.8°C7 Oct 1963 | -10.0°C30 Oct 1917 | 215 mm3 Oct 1986 | 293 mm1986 · driest 0 mm in 1952 | 119 |
| November | 30.0°C9 Nov 2006 | -16.1°C27 Nov 1975 | 105 mm3 Nov 1974 | 262 mm1931 · driest 0 mm in 1955 | 118 |
| December | 26.1°C7 Dec 1966 | -26.1°C22 Dec 1989 | 58 mm19 Dec 1933 | 134 mm1984 · driest 0 mm in 2013 | 114 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | <1 | 1 |
| February | <1 | 0 | 21 | <1 | <1 |
| March | 2 | <1 | 13 | 2 | <1 |
| April | 7 | <1 | 4 | 3 | <1 |
| May | 17 | 5 | <1 | 4 | 0 |
| June | 27 | 16 | 0 | 4 | 0 |
| July | 28 | 24 | 0 | 3 | 0 |
| August | 28 | 22 | 0 | 3 | 0 |
| September | 23 | 12 | <1 | 3 | 0 |
| October | 10 | 2 | 3 | 3 | 0 |
| November | 2 | 0 | 14 | 2 | <1 |
| December | 0 | 0 | 24 | 2 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was October (scoring 76); on 2011–2025 it is September (79). 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 | 2% | 13% | 3% | 8% | 2.7–9.9°C |
| February | 10% | 15% | 4% | 11% | 5.4–13.9°C |
| March | 27% | 19% | 7% | 16% | 11.5–19.0°C |
| April | 50% | 24% | 10% | 25% | 18.4–23.6°C |
| May | 64% | 29% | 13% | 35% | 23.0–27.3°C |
| June | 72% | 27% | 14% | 31% | 28.0–33.1°C |
| July | 80% | 20% | 10% | 17% | 30.9–36.7°C |
| August | 80% | 20% | 9% | 18% | 30.2–36.8°C |
| September | 77% | 21% | 10% | 19% | 25.9–31.6°C |
| October | 61% | 19% | 8% | 18% | 20.1–25.0°C |
| November | 22% | 15% | 6% | 10% | 11.8–17.9°C |
| December | 3% | 13% | 4% | 7% | 4.8–11.0°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