September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Gleason: typically 27.8°C by day, 15.3°C at night, with 97 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · July · June
October · April · November
The weakest month is January, scoring 5 against September’s 75 — days reach only 7.5°C, 16° 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 | 7.5°C | -2.7°C | 103 mm | 8.1 | 9 h 56 | 5 | Good coverage |
| February | 10°C | -1.1°C | 108 mm | 7.4 | 10 h 48 | 11 | Good coverage |
| March | 15.3°C | 3.3°C | 130 mm | 8.8 | 11 h 51 | 32 | Good coverage |
| April | 21.1°C | 8.5°C | 135 mm | 9 | 13 h 04 | 59 | Good coverage |
| May | 25.3°C | 13.8°C | 151 mm | 9.4 | 14 h 04 | 72 | Good coverage |
| June | 29.4°C | 18.5°C | 125 mm | 8.7 | 14 h 37 | 58 | Good coverage |
| July | 31.1°C | 20.5°C | 105 mm | 7.5 | 14 h 24 | 53 | Good coverage |
| August | 31.4°C | 19.7°C | 76 mm | 4.9 | 13 h 32 | 60 | Good coverage |
| September | 27.8°C | 15.3°C | 97 mm | 6.2 | 12 h 22 | 75 | Good coverage |
| October | 21.9°C | 8.5°C | 92 mm | 6.5 | 11 h 12 | 70 | Good coverage |
| November | 15.1°C | 3.5°C | 112 mm | 7.8 | 10 h 12 | 35 | Good coverage |
| December | 8.7°C | -1.3°C | 122 mm | 8.2 | 9 h 42 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.9°C31 Jan 2002 | -27.2°C20 Jan 1985 | 107 mm23 Jan 1999 | 257 mm1999 · driest 24 mm in 1963 | 57 |
| February | 27.2°C13 Feb 1962 | -20.6°C17 Feb 1958 | 103 mm14 Feb 1989 | 295 mm1989 · driest 26 mm in 1963 | 57 |
| March | 31.1°C31 Mar 1963 | -17.8°C5 Mar 1960 | 177 mm2 Mar 1997 | 372 mm1997 · driest 27 mm in 1966 | 58 |
| April | 32.2°C21 Apr 1963 | -5.6°C8 Apr 2007 | 110 mm6 Apr 2025 | 284 mm2025 · driest 29 mm in 1962 | 60 |
| May | 35.6°C20 May 1987 | 0.6°C10 May 1966 | 122 mm17 May 2002 | 343 mm1983 · driest 16 mm in 2005 | 59 |
| June | 37.8°C27 Jun 1988 | 6.1°C1 Jun 1966 | 119 mm5 Jun 1998 | 297 mm1998 · driest 18 mm in 2022 | 59 |
| July | 38.9°C17 Jul 1980 | 8.9°C31 Jul 1971 | 171 mm20 Jul 1975 | 305 mm1972 · driest 22 mm in 1991 | 60 |
| August | 40.0°C17 Aug 2007 | 8.3°C29 Aug 1986 | 165 mm22 Aug 1971 | 300 mm2023 · driest 1 mm in 2025 | 58 |
| September | 38.3°C7 Sep 1960 | 1.7°C29 Sep 1967 | 95 mm27 Sep 2002 | 256 mm1996 · driest 4 mm in 2022 | 58 |
| October | 33.3°C12 Oct 1963 | -5.0°C24 Oct 1981 | 90 mm4 Oct 1990 | 220 mm2004 · driest 0 mm in 1963 | 58 |
| November | 30.6°C1 Nov 1984 | -12.2°C22 Nov 1964 | 115 mm29 Nov 2001 | 312 mm2001 · driest 29 mm in 2009 | 58 |
| December | 25.6°C3 Dec 1982 | -23.9°C22 Dec 1989 | 121 mm18 Dec 1990 | 452 mm1990 · driest 4 mm in 1989 | 58 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 22 | 3 |
| February | 0 | 0 | 18 | 4 |
| March | 3 | 0 | 10 | 4 |
| April | 9 | <1 | 2 | 5 |
| May | 18 | 4 | 0 | 5 |
| June | 27 | 16 | 0 | 4 |
| July | 31 | 22 | 0 | 3 |
| August | 30 | 22 | 0 | 2 |
| September | 24 | 10 | 0 | 3 |
| October | 11 | 1 | 2 | 3 |
| November | 1 | 0 | 9 | 4 |
| December | 0 | 0 | 20 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 1% | 28% | 12% | 33% | 4.2–10.1°C |
| February | 6% | 27% | 13% | 30% | 5.8–13.9°C |
| March | 20% | 29% | 15% | 33% | 12.1–18.5°C |
| April | 44% | 30% | 14% | 35% | 19.2–23.9°C |
| May | 63% | 29% | 14% | 33% | 23.9–27.8°C |
| June | 75% | 25% | 12% | 26% | 28.4–31.3°C |
| July | 75% | 23% | 11% | 22% | 30.4–33.4°C |
| August | 82% | 19% | 9% | 17% | 29.8–33.4°C |
| September | 77% | 20% | 9% | 18% | 26.1–30.5°C |
| October | 57% | 19% | 9% | 18% | 20.5–24.5°C |
| November | 20% | 25% | 12% | 27% | 12.4–18.0°C |
| December | 3% | 26% | 12% | 29% | 6.4–12.2°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