September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Bethune: typically 27°C by day, 10°C at night, with 32 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · June · July
October · September · May
The weakest month is January, scoring 5 against September’s 81 — days reach only 6.6°C, 17° below the 24°C the score treats as ideal, and nights drop to -8.1°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 | -8.1°C | 9 mm | 1.8 | 9 h 41 | 5 | Strong coverage |
| February | 7.9°C | -7.2°C | 13 mm | 2.3 | 10 h 39 | 7 | Strong coverage |
| March | 13.6°C | -3.1°C | 27 mm | 3.2 | 11 h 49 | 33 | Strong coverage |
| April | 17.7°C | 0.9°C | 47 mm | 5.1 | 13 h 11 | 50 | Strong coverage |
| May | 23.1°C | 7°C | 68 mm | 7.2 | 14 h 18 | 74 | Strong coverage |
| June | 29.6°C | 13°C | 69 mm | 7 | 14 h 55 | 70 | Strong coverage |
| July | 32.4°C | 16°C | 83 mm | 7.6 | 14 h 41 | 60 | Strong coverage |
| August | 31.1°C | 14.8°C | 70 mm | 6.4 | 13 h 42 | 68 | Strong coverage |
| September | 27°C | 10°C | 32 mm | 3.1 | 12 h 24 | 81 | Strong coverage |
| October | 19.4°C | 2.5°C | 37 mm | 4.3 | 11 h 06 | 61 | Strong coverage |
| November | 12.1°C | -3.3°C | 12 mm | 2.3 | 9 h 58 | 28 | Strong coverage |
| December | 6.8°C | -7.6°C | 13 mm | 2.4 | 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 | 26.1°C27 Jan 1951 | -31.7°C4 Jan 1959 | 28 mm14 Jan 1960 | 45 mm1960 · driest 0 mm in 1923 | 122 |
| February | 29.4°C11 Feb 2017 | -30.6°C5 Feb 1982 | 36 mm3 Feb 1960 | 70 mm1960 · driest 0 mm in 1977 | 122 |
| March | 37.2°C26 Mar 2026 | -30.0°C3 Mar 1960 | 63 mm14 Mar 2021 | 124 mm1981 · driest 0 mm in 2026 | 116 |
| April | 35.0°C25 Apr 2012 | -19.4°C2 Apr 1936 | 82 mm15 Apr 1921 | 155 mm2016 · driest 0 mm in 1954 | 119 |
| May | 37.8°C30 May 2000 | -6.1°C3 May 1907 | 96 mm25 May 2011 | 194 mm2015 · driest 1 mm in 1927 | 119 |
| June | 44.4°C15 Jun 1952 | -0.6°C4 Jun 1919 | 71 mm3 Jun 1945 | 200 mm1965 · driest 0 mm in 1952 | 117 |
| July | 45.0°C27 Jul 2026 | 2.2°C3 Jul 1905 | 89 mm19 Jul 1985 | 181 mm1958 · driest 7 mm in 1955 | 118 |
| August | 42.8°C17 Aug 2023 | 2.8°C25 Aug 1910 | 99 mm1 Aug 2025 | 222 mm1915 · driest 0 mm in 1960 | 121 |
| September | 40.0°C3 Sep 2023 | -6.7°C30 Sep 1985 | 88 mm13 Sep 2013 | 114 mm1965 · driest 0 mm in 1974 | 121 |
| October | 37.8°C6 Oct 2024 | -18.3°C29 Oct 1917 | 102 mm19 Oct 1908 | 126 mm2008 · driest 0 mm in 1950 | 118 |
| November | 30.6°C1 Nov 2016 | -22.2°C14 Nov 1916 | 54 mm20 Nov 1930 | 80 mm2024 · driest 0 mm in 1989 | 118 |
| December | 27.2°C6 Dec 1939 | -30.0°C9 Dec 1919 | 33 mm5 Dec 1913 | 97 mm1913 · driest 0 mm in 1945 | 120 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 3 |
| February | <1 | 0 | 26 | <1 | 3 |
| March | 2 | <1 | 22 | <1 | 2 |
| April | 5 | 1 | 12 | 2 | 1 |
| May | 13 | 5 | 2 | 2 | <1 |
| June | 24 | 15 | 0 | 2 | 0 |
| July | 28 | 22 | 0 | 3 | 0 |
| August | 27 | 20 | 0 | 2 | 0 |
| September | 20 | 11 | <1 | 1 | <1 |
| October | 8 | 2 | 9 | 1 | 1 |
| November | 1 | 0 | 23 | <1 | 2 |
| December | 0 | 0 | 29 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 6% | <1% | <1% | 1.3–9.9°C |
| February | 6% | 8% | <1% | 2% | 3.7–12.5°C |
| March | 21% | 12% | 2% | 8% | 8.9–16.9°C |
| April | 41% | 17% | 5% | 14% | 14.9–20.8°C |
| May | 60% | 23% | 7% | 25% | 20.3–25.6°C |
| June | 75% | 22% | 7% | 22% | 26.3–32.2°C |
| July | 78% | 22% | 7% | 20% | 30.0–34.5°C |
| August | 81% | 19% | 7% | 14% | 28.8–33.5°C |
| September | 81% | 11% | 4% | 7% | 24.2–29.9°C |
| October | 55% | 11% | 3% | 7% | 16.7–23.2°C |
| November | 17% | 7% | 1% | 2% | 9.1–15.7°C |
| December | 3% | 7% | 1% | 3% | 2.7–10.4°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