September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Cohill Estates: typically 25°C by day, 12°C at night, with 105 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 78 — days reach only 4.6°C, 19° 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 | 4.6°C | -5.8°C | 87 mm | 6.3 | 9 h 39 | 5 | Strong coverage |
| February | 6.6°C | -4.9°C | 57 mm | 5.5 | 10 h 38 | 5 | Strong coverage |
| March | 11.2°C | -1.2°C | 77 mm | 7.2 | 11 h 49 | 19 | Strong coverage |
| April | 17.9°C | 4.4°C | 90 mm | 8.7 | 13 h 12 | 48 | Strong coverage |
| May | 22.8°C | 9.8°C | 107 mm | 9.7 | 14 h 20 | 71 | Strong coverage |
| June | 27.3°C | 14.5°C | 120 mm | 9.2 | 14 h 58 | 71 | Strong coverage |
| July | 29.7°C | 17.1°C | 107 mm | 8.7 | 14 h 43 | 62 | Strong coverage |
| August | 28.7°C | 16.1°C | 89 mm | 7.7 | 13 h 44 | 71 | Strong coverage |
| September | 25°C | 12°C | 105 mm | 6.8 | 12 h 24 | 78 | Strong coverage |
| October | 19.1°C | 5.7°C | 79 mm | 6.6 | 11 h 05 | 57 | Strong coverage |
| November | 12.5°C | 0.4°C | 67 mm | 5.2 | 9 h 56 | 29 | Strong coverage |
| December | 6.8°C | -3.6°C | 71 mm | 5.6 | 9 h 22 | 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 | 22.8°C30 Jan 1975 | -32.2°C21 Jan 1985 | 103 mm2 Jan 1999 | 225 mm2003 · driest 6 mm in 2025 | 53 |
| February | 27.8°C22 Feb 2018 | -23.3°C8 Feb 1985 | 102 mm13 Feb 2008 | 187 mm2014 · driest 0 mm in 2002 | 53 |
| March | 31.1°C31 Mar 1998 | -17.8°C15 Mar 1993 | 58 mm21 Mar 2003 | 163 mm1993 · driest 0 mm in 2006 | 53 |
| April | 34.4°C19 Apr 1976 | -11.1°C1 Apr 1987 | 63 mm21 Apr 2008 | 174 mm2011 · driest 15 mm in 1997 | 53 |
| May | 36.1°C20 May 1996 | -5.0°C5 May 2003 | 85 mm23 May 2026 | 231 mm2025 · driest 1 mm in 2007 | 52 |
| June | 37.2°C30 Jun 2012 | -0.6°C4 Jun 2002 | 120 mm26 Jun 2006 | 340 mm2018 · driest 16 mm in 2024 | 52 |
| July | 40.0°C17 Jul 1988 | 6.7°C7 Jul 1979 | 61 mm19 Jul 2006 | 201 mm1978 · driest 9 mm in 1983 | 53 |
| August | 38.3°C21 Aug 1983 | 2.2°C30 Aug 1986 | 97 mm9 Aug 2024 | 259 mm2012 · driest 11 mm in 1998 | 49 |
| September | 36.7°C17 Sep 1991 | -2.2°C24 Sep 1974 | 128 mm7 Sep 1996 | 358 mm2004 · driest 8 mm in 2005 | 53 |
| October | 33.3°C2 Oct 2019 | -5.0°C27 Oct 1988 | 102 mm21 Oct 1995 | 279 mm1976 · driest 5 mm in 2024 | 53 |
| November | 28.9°C3 Nov 1982 | -11.7°C30 Nov 1976 | 102 mm29 Nov 2015 | 190 mm1985 · driest 2 mm in 2001 | 52 |
| December | 25.0°C9 Dec 2001 | -22.2°C25 Dec 1983 | 105 mm2 Dec 1974 | 151 mm1974 · driest 3 mm in 2002 | 53 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 3 | 2 |
| February | <1 | 0 | 23 | 2 | 2 |
| March | <1 | 0 | 19 | 2 | 1 |
| April | 5 | <1 | 6 | 3 | <1 |
| May | 12 | 4 | <1 | 4 | 0 |
| June | 22 | 9 | <1 | 4 | 0 |
| July | 28 | 16 | 0 | 3 | 0 |
| August | 27 | 11 | 0 | 3 | 0 |
| September | 16 | 4 | 0 | 3 | <1 |
| October | 5 | <1 | 4 | 3 | <1 |
| November | <1 | 0 | 15 | 2 | <1 |
| December | <1 | 0 | 22 | 2 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 21% | 8% | 20% | 0.8–7.7°C |
| February | 2% | 21% | 6% | 21% | 2.8–10.3°C |
| March | 11% | 24% | 8% | 28% | 7.6–14.5°C |
| April | 30% | 28% | 9% | 31% | 15.3–20.3°C |
| May | 51% | 34% | 13% | 43% | 20.4–25.2°C |
| June | 66% | 31% | 12% | 38% | 25.5–29.4°C |
| July | 71% | 29% | 11% | 33% | 28.0–31.7°C |
| August | 73% | 27% | 10% | 32% | 26.8–30.3°C |
| September | 69% | 23% | 9% | 25% | 23.4–27.1°C |
| October | 37% | 22% | 9% | 21% | 16.4–21.1°C |
| November | 11% | 20% | 8% | 19% | 9.0–15.7°C |
| December | 2% | 20% | 7% | 16% | 3.4–10.1°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