June
June · July · August
France · 1991–2020
June leads for comfortable weather in Mulhouse: typically 24.2°C by day, 12.7°C at night, with 75 mm of rain. Based on measured 1991–2020 NOAA station history.
June · July · August
July · August · June
September · May · April
The weakest month is January, scoring 5 against June’s 83 — days reach only 5.5°C, 18° 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 | 5.5°C | -0.9°C | 46 mm | 9.1 | 8 h 48 | 5 | Strong coverage |
| February | 7.5°C | -0.7°C | 44 mm | 8.6 | 10 h 09 | 11 | Strong coverage |
| March | 12.2°C | 1.9°C | 47 mm | 9.1 | 11 h 44 | 30 | Strong coverage |
| April | 16.5°C | 4.8°C | 58 mm | 9.4 | 13 h 33 | 48 | Strong coverage |
| May | 20.4°C | 9.3°C | 87 mm | 11.2 | 15 h 07 | 63 | Strong coverage |
| June | 24.2°C | 12.7°C | 75 mm | 10 | 15 h 59 | 83 | Strong coverage |
| July | 26.4°C | 14.2°C | 72 mm | 10.1 | 15 h 38 | 79 | Strong coverage |
| August | 26.1°C | 14°C | 80 mm | 10.1 | 14 h 17 | 79 | Strong coverage |
| September | 21.4°C | 10.2°C | 64 mm | 9 | 12 h 30 | 73 | Strong coverage |
| October | 16°C | 6.8°C | 68 mm | 10.5 | 10 h 45 | 48 | Strong coverage |
| November | 9.8°C | 2.7°C | 61 mm | 10 | 9 h 12 | 21 | Strong coverage |
| December | 6.2°C | 0°C | 63 mm | 10.7 | 8 h 26 | 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 | 18.8°C10 Jan 1991 | -23.5°C6 Jan 1985 | 45 mm27 Jan 1979 | 132 mm2016 · driest 4 mm in 1964 | 80 |
| February | 21.8°C27 Feb 2026 | -22.8°C13 Feb 1956 | 23 mm1 Feb 2013 | 157 mm1970 · driest 2 mm in 1959 | 80 |
| March | 26.2°C31 Mar 2021 | -16.4°C1 Mar 2005 | 50 mm4 Mar 2006 | 189 mm2001 · driest 3 mm in 1950 | 80 |
| April | 30.0°C21 Apr 1968 | -6.3°C8 Apr 2003 | 48 mm3 Apr 1992 | 142 mm2016 · driest 6 mm in 2007 | 80 |
| May | 33.8°C26 May 2026 | -3.1°C11 May 1953 | 56 mm28 May 2003 | 184 mm1995 · driest 20 mm in 1953 | 80 |
| June | 38.0°C22 Jun 2026 | 1.8°C3 Jun 1962 | 49 mm14 Jun 2015 | 175 mm2007 · driest 8 mm in 1976 | 80 |
| July | 38.8°C31 Jul 1983 | 5.1°C2 Jul 1960 | 53 mm24 Jul 1982 | 157 mm2014 · driest 7 mm in 1964 | 79 |
| August | 39.1°C13 Aug 2003 | 3.4°C14 Aug 1949 | 59 mm8 Aug 2007 | 163 mm2006 · driest 10 mm in 1991 | 79 |
| September | 33.7°C3 Sep 1962 | -0.9°C25 Sep 1972 | 49 mm13 Sep 2008 | 146 mm2025 · driest 6 mm in 1959 | 79 |
| October | 31.0°C3 Oct 1985 | -6.3°C30 Oct 1997 | 35 mm26 Oct 2004 | 170 mm2004 · driest 2 mm in 1969 | 79 |
| November | 23.4°C7 Nov 2015 | -12.6°C30 Nov 2010 | 40 mm16 Nov 1995 | 216 mm1950 · driest 4 mm in 2011 | 79 |
| December | 19.9°C16 Dec 1989 | -18.7°C20 Dec 1975 | 45 mm9 Dec 1954 | 143 mm2010 · driest 3 mm in 2016 | 79 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 17 | 1 |
| February | 0 | 0 | 15 | 1 |
| March | 0 | 0 | 10 | <1 |
| April | 2 | 0 | 4 | 2 |
| May | 6 | <1 | <1 | 3 |
| June | 14 | 4 | 0 | 2 |
| July | 19 | 7 | 0 | 2 |
| August | 18 | 7 | 0 | 3 |
| September | 7 | <1 | 0 | 2 |
| October | <1 | 0 | 2 | 2 |
| November | 0 | 0 | 7 | 2 |
| December | 0 | 0 | 15 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 90); on 2011–2025 it is June (86). 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% | 32% | 4% | 39% | 1.2–8.1°C |
| February | <1% | 32% | 4% | 42% | 3.5–11.2°C |
| March | 4% | 31% | 3% | 40% | 8.5–14.5°C |
| April | 20% | 33% | 5% | 46% | 12.6–18.5°C |
| May | 36% | 37% | 7% | 51% | 16.8–22.1°C |
| June | 54% | 35% | 8% | 46% | 20.9–26.5°C |
| July | 64% | 32% | 7% | 41% | 23.0–28.6°C |
| August | 62% | 34% | 9% | 42% | 22.3–27.8°C |
| September | 47% | 29% | 6% | 36% | 18.9–23.9°C |
| October | 15% | 30% | 5% | 38% | 13.5–18.4°C |
| November | <1% | 34% | 6% | 44% | 6.8–11.6°C |
| December | 0% | 34% | 4% | 46% | 2.9–8.2°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