June
June · October · May
United States · 1991–2020
June leads for comfortable weather in Alsace: typically 23.7°C by day, 15.6°C at night, with 1 mm of rain. Based on measured 1991–2020 NOAA station history.
June · October · May
August · July · September
March · November · April
The weakest month is February, scoring 64 against June’s 98 — days reach only 19.3°C, 5° below the 24°C the score treats as ideal, and nights drop to 9.1°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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 19.3°C | 8.8°C | 80 mm | 5.2 | 14.9°C | 10 h 07 | 65 | Strong coverage |
| February | 19.3°C | 9.1°C | 88 mm | 5 | 14.8°C | 10 h 55 | 64 | Strong coverage |
| March | 20.1°C | 10.2°C | 50 mm | 3.4 | 14.8°C | 11 h 52 | 76 | Strong coverage |
| April | 21.7°C | 11.6°C | 15 mm | 1.5 | 15.1°C | 12 h 59 | 86 | Strong coverage |
| May | 22.3°C | 13.5°C | 7 mm | 0.7 | 16.6°C | 13 h 54 | 92 | Strong coverage |
| June | 23.7°C | 15.6°C | 1 mm | 0.2 | 18.2°C | 14 h 24 | 98 | Strong coverage |
| July | 25.8°C | 17.2°C | 1 mm | 0.3 | 19.7°C | 14 h 12 | 90 | Strong coverage |
| August | 26.2°C | 17.3°C | 0 mm | 0 | 20.2°C | 13 h 25 | 89 | Strong coverage |
| September | 26°C | 16.5°C | 3 mm | 0.1 | 20.0°C | 12 h 21 | 91 | Strong coverage |
| October | 24.5°C | 14.2°C | 14 mm | 1 | 19.0°C | 11 h 16 | 97 | Strong coverage |
| November | 21.5°C | 11°C | 20 mm | 2 | 17.3°C | 10 h 21 | 85 | Strong coverage |
| December | 18.9°C | 8.4°C | 61 mm | 3.8 | 15.6°C | 9 h 54 | 67 | 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 | 32.2°C17 Jan 1976 | -4.4°C4 Jan 1949 | 114 mm20 Jan 1969 | 395 mm1969 · driest 0 mm in 1985 | 88 |
| February | 33.3°C8 Feb 1954 | -4.4°C20 Feb 2011 | 180 mm5 Feb 2024 | 354 mm2024 · driest 0 mm in 1988 | 88 |
| March | 33.9°C17 Mar 2026 | -0.6°C10 Mar 2000 | 111 mm8 Mar 1968 | 299 mm1983 · driest 0 mm in 1972 | 88 |
| April | 40.6°C6 Apr 1989 | 0.0°C20 Apr 1995 | 50 mm19 Apr 1984 | 157 mm1965 · driest 0 mm in 1997 | 91 |
| May | 36.7°C15 May 2014 | 0.0°C2 May 1935 | 37 mm8 May 1977 | 83 mm1998 · driest 0 mm in 1936 | 90 |
| June | 36.7°C28 Jun 1980 | 6.1°C24 Jun 1963 | 11 mm9 Jun 1964 | 12 mm1995 · driest 0 mm in 1980 | 86 |
| July | 36.7°C2 Jul 1985 | 7.8°C9 Jul 2012 | 7 mm19 Jul 2015 | 12 mm2015 · driest 0 mm in 2017 | 88 |
| August | 39.4°C6 Aug 1983 | 6.1°C24 Aug 2009 | 58 mm21 Aug 2023 | 94 mm2023 · driest 0 mm in 1949 | 90 |
| September | 43.9°C26 Sep 1963 | 4.4°C4 Sep 1994 | 78 mm25 Sep 1939 | 97 mm1939 · driest 0 mm in 1937 | 87 |
| October | 41.1°C14 Oct 1961 | 3.9°C16 Oct 1995 | 61 mm14 Oct 2009 | 104 mm2004 · driest 0 mm in 1961 | 88 |
| November | 37.8°C1 Nov 1966 | -2.2°C25 Nov 2010 | 104 mm22 Nov 1967 | 279 mm1967 · driest 0 mm in 1992 | 91 |
| December | 32.8°C9 Dec 1938 | -1.1°C9 Dec 1951 | 77 mm24 Dec 2025 | 254 mm2010 · driest 0 mm in 1958 | 85 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 3 | <1 | 3 |
| February | 3 | <1 | 3 |
| March | 3 | <1 | 2 |
| April | 5 | 1 | <1 |
| May | 4 | <1 | <1 |
| June | 7 | <1 | 0 |
| July | 18 | 2 | 0 |
| August | 20 | 3 | 0 |
| September | 17 | 3 | <1 |
| October | 10 | 3 | <1 |
| November | 5 | <1 | <1 |
| December | 2 | 0 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 98); on 2011–2025 it is October (98). 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 | 39% | 15% | 7% | 17% | 17.6–21.5°C |
| February | 40% | 16% | 8% | 16% | 17.4–21.8°C |
| March | 45% | 13% | 6% | 11% | 18.1–21.5°C |
| April | 59% | 6% | 2% | 2% | 19.1–23.3°C |
| May | 80% | 2% | <1% | <1% | 20.3–24.2°C |
| June | 96% | <1% | 0% | 0% | 21.4–25.4°C |
| July | 100% | <1% | 0% | <1% | 23.7–27.8°C |
| August | 99% | <1% | <1% | <1% | 24.3–28.2°C |
| September | 99% | 1% | <1% | 0% | 24.0–28.5°C |
| October | 92% | 3% | 1% | 2% | 22.2–26.8°C |
| November | 68% | 7% | 3% | 6% | 20.2–24.1°C |
| December | 41% | 13% | 6% | 11% | 17.6–21.7°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