September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Saint Clement: typically 26.1°C by day, 13°C at night, with 92 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 2.4°C, 22° 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 | 2.4°C | -7.7°C | 56 mm | 4.7 | 9 h 41 | 5 | Strong coverage |
| February | 6°C | -5.3°C | 53 mm | 5.4 | 10 h 39 | 5 | Good coverage |
| March | 11.6°C | -0.3°C | 71 mm | 7.2 | 11 h 50 | 23 | Strong coverage |
| April | 18.8°C | 5.9°C | 110 mm | 8.4 | 13 h 11 | 51 | Strong coverage |
| May | 23.5°C | 11.5°C | 122 mm | 9.7 | 14 h 18 | 74 | Good coverage |
| June | 28.3°C | 16.7°C | 119 mm | 8.1 | 14 h 55 | 66 | Good coverage |
| July | 30.6°C | 19°C | 112 mm | 7.2 | 14 h 41 | 57 | Strong coverage |
| August | 29.6°C | 17.8°C | 93 mm | 5.8 | 13 h 42 | 66 | Strong coverage |
| September | 26.1°C | 13°C | 92 mm | 5.8 | 12 h 24 | 79 | Strong coverage |
| October | 20°C | 6.8°C | 75 mm | 6.6 | 11 h 06 | 63 | Strong coverage |
| November | 11.6°C | 0.6°C | 72 mm | 6.1 | 9 h 58 | 25 | Strong coverage |
| December | 5.6°C | -4.3°C | 52 mm | 5.2 | 9 h 25 | 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 | 22.2°C17 Jan 1990 | -31.7°C5 Jan 1999 | 140 mm10 Jan 1993 | 210 mm1993 · driest 0 mm in 1986 | 59 |
| February | 26.1°C28 Feb 2024 | -32.2°C9 Feb 1979 | 56 mm14 Feb 1991 | 148 mm1990 · driest 1 mm in 2004 | 57 |
| March | 32.2°C27 Mar 2026 | -26.7°C5 Mar 1978 | 66 mm18 Mar 2021 | 239 mm1973 · driest 1 mm in 2005 | 58 |
| April | 33.3°C11 Apr 1992 | -11.1°C10 Apr 1989 | 117 mm30 Apr 2017 | 240 mm1970 · driest 14 mm in 1971 | 57 |
| May | 35.6°C31 May 1991 | -3.3°C7 May 1989 | 111 mm31 May 1974 | 240 mm1990 · driest 6 mm in 1965 | 58 |
| June | 40.0°C25 Jun 1988 | 2.8°C3 Jun 1969 | 101 mm15 Jun 2017 | 356 mm2015 · driest 0 mm in 1972 | 56 |
| July | 40.6°C7 Jul 2012 | 5.6°C7 Jul 1983 | 97 mm7 Jul 1987 | 291 mm2016 · driest 12 mm in 1972 | 58 |
| August | 41.1°C30 Aug 1984 | 2.8°C29 Aug 1986 | 106 mm26 Aug 1975 | 224 mm1995 · driest 15 mm in 1998 | 56 |
| September | 38.9°C2 Sep 1984 | -4.4°C20 Sep 1999 | 121 mm19 Sep 2010 | 353 mm1993 · driest 0 mm in 2002 | 55 |
| October | 34.4°C11 Oct 1963 | -8.9°C22 Oct 1976 | 107 mm12 Oct 1969 | 223 mm1969 · driest 8 mm in 1964 | 58 |
| November | 28.3°C3 Nov 2016 | -22.2°C8 Nov 1991 | 144 mm15 Nov 1964 | 247 mm1985 · driest 3 mm in 1976 | 56 |
| December | 25.6°C9 Dec 1991 | -29.4°C23 Dec 1989 | 81 mm3 Dec 1982 | 207 mm1982 · driest 1 mm in 1978 | 57 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 2 | 2 |
| February | 0 | 0 | 21 | 2 | 2 |
| March | 2 | 0 | 16 | 3 | <1 |
| April | 6 | <1 | 5 | 3 | <1 |
| May | 14 | 4 | <1 | 4 | 0 |
| June | 23 | 12 | 0 | 4 | 0 |
| July | 28 | 18 | 0 | 3 | 0 |
| August | 26 | 14 | 0 | 3 | 0 |
| September | 17 | 7 | <1 | 2 | 0 |
| October | 7 | 1 | 4 | 3 | <1 |
| November | <1 | 0 | 14 | 2 | <1 |
| December | 0 | 0 | 22 | 1 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 15% | 5% | 9% | -1.7–6.6°C |
| February | 3% | 17% | 5% | 13% | 0.1–10.1°C |
| March | 12% | 23% | 9% | 22% | 7.5–15.0°C |
| April | 31% | 27% | 11% | 32% | 15.8–21.7°C |
| May | 55% | 28% | 12% | 34% | 21.0–26.1°C |
| June | 73% | 25% | 12% | 27% | 26.7–30.6°C |
| July | 78% | 20% | 10% | 17% | 28.8–32.5°C |
| August | 79% | 19% | 9% | 15% | 27.6–31.8°C |
| September | 73% | 19% | 8% | 17% | 24.1–28.3°C |
| October | 42% | 19% | 8% | 20% | 17.7–22.4°C |
| November | 11% | 19% | 8% | 15% | 8.4–15.0°C |
| December | 1% | 17% | 6% | 14% | 1.1–8.3°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