April
April · October · May
United States · 1991–2020
April leads for comfortable weather in Bloomington Hills: typically 24.6°C by day, 8.5°C at night, with 15 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · May
May · September · June
March · April · November
The weakest month is December, scoring 32 against April’s 86 — days reach only 12.1°C, 12° below the 24°C the score treats as ideal, and nights drop to -1.1°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 | 12.8°C | -0.7°C | 26 mm | 4 | 9 h 52 | 34 | Strong coverage |
| February | 15.7°C | 1.4°C | 32 mm | 4.3 | 10 h 46 | 47 | Strong coverage |
| March | 20.5°C | 5°C | 21 mm | 3.5 | 11 h 51 | 70 | Strong coverage |
| April | 24.6°C | 8.5°C | 15 mm | 2.5 | 13 h 05 | 86 | Strong coverage |
| May | 30.1°C | 13.7°C | 8 mm | 1.7 | 14 h 08 | 78 | Strong coverage |
| June | 36.3°C | 18.9°C | 4 mm | 0.7 | 14 h 41 | 52 | Strong coverage |
| July | 39.3°C | 23°C | 12 mm | 2 | 14 h 28 | 35 | Strong coverage |
| August | 38.2°C | 22.2°C | 16 mm | 2.2 | 13 h 35 | 40 | Strong coverage |
| September | 34°C | 16.9°C | 13 mm | 1.9 | 12 h 22 | 63 | Strong coverage |
| October | 26.4°C | 9.6°C | 19 mm | 2.5 | 11 h 10 | 82 | Strong coverage |
| November | 18.2°C | 2.8°C | 15 mm | 2 | 10 h 08 | 59 | Strong coverage |
| December | 12.1°C | -1.1°C | 21 mm | 3.2 | 9 h 38 | 32 | 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 | 22.2°C29 Jan 1931 | -23.9°C22 Jan 1937 | 53 mm3 Jan 1997 | 120 mm1993 · driest 0 mm in 1972 | 130 |
| February | 28.9°C26 Feb 1986 | -17.2°C7 Feb 1899 | 40 mm11 Feb 1982 | 92 mm2019 · driest 0 mm in 1974 | 130 |
| March | 36.1°C21 Mar 2026 | -11.1°C22 Mar 1898 | 51 mm11 Mar 2006 | 116 mm2006 · driest 0 mm in 2026 | 128 |
| April | 37.8°C25 Apr 1946 | -7.8°C8 Apr 1901 | 28 mm29 Apr 1917 | 73 mm1988 · driest 0 mm in 2002 | 131 |
| May | 42.2°C31 May 1910 | -6.7°C3 May 1899 | 39 mm11 May 1958 | 52 mm2019 · driest 0 mm in 1934 | 132 |
| June | 46.1°C12 Jun 1918 | 1.7°C1 Jun 1908 | 30 mm4 Jun 1925 | 44 mm1932 · driest 0 mm in 2000 | 131 |
| July | 47.2°C11 Jul 2021 | 5.0°C3 Jul 1902 | 46 mm25 Jul 1902 | 76 mm1896 · driest 0 mm in 2000 | 131 |
| August | 46.1°C17 Aug 2020 | 4.4°C12 Aug 1894 | 61 mm31 Aug 1909 | 77 mm1925 · driest 0 mm in 1976 | 129 |
| September | 44.4°C7 Sep 2022 | -3.9°C21 Sep 1895 | 45 mm2 Sep 2023 | 106 mm1939 · driest 0 mm in 2019 | 129 |
| October | 38.3°C1 Oct 2024 | -6.7°C30 Oct 1971 | 46 mm26 Oct 1912 | 138 mm1912 · driest 0 mm in 1964 | 129 |
| November | 31.1°C2 Nov 1945 | -15.6°C29 Nov 1896 | 33 mm20 Nov 2019 | 70 mm2019 · driest 0 mm in 1916 | 129 |
| December | 23.9°C3 Dec 1941 | -20.0°C25 Dec 1909 | 47 mm1 Dec 2007 | 87 mm2010 · driest 0 mm in 1989 | 130 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 19 | <1 |
| February | <1 | 0 | 10 | 1 |
| March | 6 | <1 | 2 | <1 |
| April | 15 | 4 | <1 | <1 |
| May | 25 | 17 | 0 | <1 |
| June | 28 | 27 | 0 | <1 |
| July | 29 | 29 | 0 | <1 |
| August | 29 | 29 | 0 | <1 |
| September | 28 | 26 | 0 | <1 |
| October | 19 | 8 | <1 | <1 |
| November | 2 | <1 | 7 | <1 |
| December | 0 | 0 | 20 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 14% | 3% | 12% | 9.4–14.7°C |
| February | 18% | 16% | 3% | 14% | 12.7–18.7°C |
| March | 52% | 14% | 2% | 10% | 16.9–22.8°C |
| April | 80% | 9% | 1% | 5% | 22.1–27.6°C |
| May | 92% | 7% | <1% | 3% | 27.0–32.2°C |
| June | 96% | 4% | <1% | 1% | 33.5–38.0°C |
| July | 91% | 9% | 2% | 5% | 37.3–40.3°C |
| August | 90% | 10% | 2% | 5% | 36.1–39.0°C |
| September | 92% | 8% | 2% | 4% | 31.7–35.9°C |
| October | 85% | 9% | 2% | 6% | 24.2–29.3°C |
| November | 39% | 9% | 2% | 6% | 15.7–20.6°C |
| December | 1% | 12% | 2% | 8% | 9.6–15.0°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