September
September · June · July
United States · 1991–2020
September leads for comfortable weather in Dahl Place: typically 23.5°C by day, 5.4°C at night, with 31 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · July
July · August · September
September · June · May
The weakest month is January, scoring 5 against September’s 79 — days reach only 3.4°C, 21° 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 | 3.4°C | -7°C | 11 mm | 3.2 | 9 h 03 | 5 | Strong coverage |
| February | 4.2°C | -7.2°C | 12 mm | 3.7 | 10 h 18 | 5 | Strong coverage |
| March | 9.1°C | -3.9°C | 20 mm | 5.1 | 11 h 46 | 15 | Strong coverage |
| April | 13°C | -0.9°C | 44 mm | 8.6 | 13 h 27 | 29 | Strong coverage |
| May | 18.4°C | 3.4°C | 67 mm | 9.8 | 14 h 53 | 50 | Strong coverage |
| June | 23.6°C | 7.3°C | 61 mm | 9.7 | 15 h 41 | 75 | Strong coverage |
| July | 30.1°C | 10.3°C | 34 mm | 5.3 | 15 h 22 | 69 | Strong coverage |
| August | 29.7°C | 9.3°C | 27 mm | 4.8 | 14 h 07 | 69 | Strong coverage |
| September | 23.5°C | 5.4°C | 31 mm | 5.3 | 12 h 29 | 79 | Strong coverage |
| October | 15°C | 0.8°C | 34 mm | 6.4 | 10 h 51 | 42 | Strong coverage |
| November | 7.4°C | -3.5°C | 16 mm | 4 | 9 h 25 | 11 | Strong coverage |
| December | 2.8°C | -7°C | 13 mm | 3.7 | 8 h 42 | 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 | 19.4°C22 Jan 1981 | -35.6°C13 Jan 1997 | 41 mm10 Jan 1980 | 61 mm1989 · driest 0 mm in 2009 | 78 |
| February | 21.1°C20 Feb 1995 | -36.1°C18 Feb 2006 | 24 mm17 Feb 1955 | 45 mm1986 · driest 0 mm in 1977 | 78 |
| March | 26.1°C20 Mar 2026 | -35.5°C4 Mar 2019 | 28 mm27 Mar 1981 | 56 mm1967 · driest 1 mm in 1987 | 78 |
| April | 30.0°C23 Apr 2012 | -18.9°C6 Apr 1983 | 30 mm27 Apr 1989 | 88 mm2019 · driest 6 mm in 1980 | 78 |
| May | 33.9°C19 May 1954 | -11.7°C9 May 2002 | 61 mm17 May 2017 | 165 mm1981 · driest 8 mm in 1958 | 78 |
| June | 37.2°C14 Jun 2021 | -2.8°C5 Jun 1998 | 74 mm16 Jun 1992 | 144 mm1957 · driest 14 mm in 1974 | 78 |
| July | 40.6°C12 Jul 2026 | 0.6°C12 Jul 2008 | 52 mm6 Jul 1994 | 111 mm1993 · driest 0 mm in 1991 | 79 |
| August | 40.6°C5 Aug 1961 | -2.2°C25 Aug 1992 | 66 mm24 Aug 1979 | 99 mm1979 · driest 2 mm in 2001 | 78 |
| September | 38.9°C7 Sep 2022 | -12.2°C29 Sep 1985 | 36 mm8 Sep 1970 | 96 mm2019 · driest 1 mm in 1964 | 78 |
| October | 32.8°C1 Oct 2011 | -24.3°C29 Oct 2019 | 44 mm4 Oct 1992 | 88 mm1975 · driest 0 mm in 1987 | 78 |
| November | 25.0°C13 Nov 1999 | -35.0°C13 Nov 1959 | 25 mm12 Nov 1973 | 61 mm1973 · driest 2 mm in 1954 | 78 |
| December | 17.8°C2 Dec 2021 | -40.6°C24 Dec 1983 | 34 mm23 Dec 1955 | 51 mm1955 · driest 0 mm in 2009 | 78 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | <1 | 6 |
| February | 0 | 0 | 24 | 0 | 5 |
| March | 0 | 0 | 23 | <1 | 6 |
| April | <1 | 0 | 18 | 1 | 7 |
| May | 5 | <1 | 7 | 2 | 1 |
| June | 13 | 4 | <1 | 2 | <1 |
| July | 27 | 18 | 0 | <1 | 0 |
| August | 26 | 18 | <1 | <1 | <1 |
| September | 14 | 6 | 3 | <1 | 1 |
| October | 3 | <1 | 14 | <1 | 3 |
| November | <1 | 0 | 21 | <1 | 5 |
| December | 0 | 0 | 26 | <1 | 5 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 81); on 2011–2025 it is September (82). 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 | 0% | 11% | <1% | 7% | -2.0–5.8°C |
| February | <1% | 12% | <1% | 9% | -0.3–7.9°C |
| March | 3% | 18% | 1% | 15% | 3.2–12.2°C |
| April | 15% | 26% | 3% | 28% | 10.1–15.8°C |
| May | 35% | 30% | 7% | 38% | 15.2–21.1°C |
| June | 59% | 32% | 6% | 39% | 20.4–25.8°C |
| July | 80% | 19% | 3% | 14% | 26.4–32.2°C |
| August | 81% | 17% | 3% | 14% | 26.0–31.6°C |
| September | 62% | 19% | 3% | 18% | 18.6–26.2°C |
| October | 28% | 18% | 3% | 13% | 11.9–18.7°C |
| November | 2% | 14% | <1% | 9% | 3.9–10.8°C |
| December | 0% | 12% | <1% | 5% | -1.1–6.0°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