April
April · October · May
United States · 1991–2020
April leads for comfortable weather in Detroit: typically 22.9°C by day, 9.9°C at night, with 96 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · May
June · August · July
April · November · March
The weakest month is December, scoring 24 against April’s 76 — days reach only 13.1°C, 11° below the 24°C the score treats as ideal, and nights drop to 0.9°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 | 12.2°C | 0.1°C | 79 mm | 6.1 | 10 h 08 | 25 | Good coverage |
| February | 15°C | 1.9°C | 87 mm | 6.2 | 10 h 55 | 36 | Good coverage |
| March | 18.4°C | 5.5°C | 120 mm | 7.4 | 11 h 52 | 49 | Good coverage |
| April | 22.9°C | 9.9°C | 96 mm | 6.5 | 12 h 58 | 76 | Good coverage |
| May | 26.9°C | 15.8°C | 133 mm | 7.4 | 13 h 53 | 71 | Good coverage |
| June | 31.1°C | 20.1°C | 91 mm | 6.5 | 14 h 22 | 56 | Good coverage |
| July | 33.6°C | 22.2°C | 77 mm | 4.8 | 14 h 11 | 48 | Good coverage |
| August | 33.8°C | 21.5°C | 62 mm | 5 | 13 h 24 | 50 | Good coverage |
| September | 30.1°C | 17.6°C | 106 mm | 5.3 | 12 h 20 | 63 | Good coverage |
| October | 24.7°C | 11.3°C | 130 mm | 6.4 | 11 h 17 | 75 | Good coverage |
| November | 18.1°C | 5.6°C | 110 mm | 5.9 | 10 h 22 | 51 | Good coverage |
| December | 13.1°C | 0.9°C | 116 mm | 6.5 | 9 h 56 | 24 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 33.3°C11 Jan 1911 | -21.7°C18 Jan 1930 | 120 mm30 Jan 1969 | 254 mm1949 · driest 4 mm in 2003 | 103 |
| February | 32.2°C22 Feb 1996 | -20.6°C2 Feb 1951 | 100 mm28 Feb 1927 | 256 mm1997 · driest 9 mm in 1999 | 102 |
| March | 35.6°C19 Mar 1908 | -12.8°C3 Mar 1943 | 156 mm29 Mar 1945 | 375 mm1990 · driest 10 mm in 1916 | 101 |
| April | 35.6°C7 Apr 1930 | -5.0°C8 Apr 2007 | 125 mm4 Apr 1986 | 343 mm1957 · driest 2 mm in 1987 | 103 |
| May | 37.8°C19 May 1934 | 1.7°C1 May 1903 | 211 mm22 May 1933 | 426 mm2009 · driest 6 mm in 1988 | 104 |
| June | 41.1°C23 Jun 1933 | 7.2°C12 Jun 1903 | 116 mm8 Jun 1938 | 287 mm2000 · driest 0 mm in 1998 | 102 |
| July | 43.3°C11 Jul 1933 | 11.1°C3 Jul 1936 | 108 mm19 Jul 1992 | 408 mm1992 · driest 0 mm in 1913 | 103 |
| August | 46.1°C10 Aug 1936 | 11.1°C16 Aug 1929 | 104 mm23 Aug 1919 | 264 mm1914 · driest 0 mm in 1929 | 103 |
| September | 42.2°C5 Sep 1998 | 2.2°C27 Sep 1942 | 134 mm29 Sep 1980 | 296 mm1974 · driest 0 mm in 1937 | 102 |
| October | 37.8°C1 Oct 1938 | -5.0°C31 Oct 1993 | 189 mm1 Oct 1955 | 427 mm1919 · driest 1 mm in 1964 | 101 |
| November | 33.3°C2 Nov 1909 | -13.3°C29 Nov 1976 | 140 mm4 Nov 1956 | 388 mm1996 · driest 0 mm in 1910 | 101 |
| December | 31.7°C22 Dec 1933 | -16.7°C24 Dec 1989 | 121 mm3 Dec 1982 | 294 mm1971 · driest 3 mm in 1950 | 101 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 17 | 3 |
| February | 1 | <1 | 11 | 3 |
| March | 5 | <1 | 4 | 4 |
| April | 11 | <1 | <1 | 3 |
| May | 22 | 7 | 0 | 4 |
| June | 28 | 22 | 0 | 3 |
| July | 30 | 28 | 0 | 2 |
| August | 30 | 26 | 0 | 2 |
| September | 25 | 17 | 0 | 3 |
| October | 16 | 5 | <1 | 3 |
| November | 4 | <1 | 6 | 3 |
| December | <1 | 0 | 15 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 15% | 20% | 9% | 19% | 9.1–16.6°C |
| February | 24% | 22% | 10% | 20% | 11.5–19.0°C |
| March | 43% | 21% | 11% | 18% | 16.0–22.9°C |
| April | 66% | 24% | 12% | 25% | 22.0–26.3°C |
| May | 75% | 24% | 13% | 24% | 25.7–29.8°C |
| June | 81% | 19% | 10% | 18% | 29.8–34.2°C |
| July | 84% | 16% | 8% | 13% | 32.2–36.7°C |
| August | 85% | 15% | 7% | 10% | 31.7–37.5°C |
| September | 84% | 16% | 9% | 14% | 28.4–34.4°C |
| October | 75% | 17% | 9% | 16% | 23.4–27.9°C |
| November | 42% | 18% | 10% | 16% | 16.1–21.8°C |
| December | 15% | 21% | 10% | 20% | 11.2–16.8°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