Is Detroit hot in July?
Days are typically warm at 28.9°C, while nights average 18.7°C.
United States · 1991–2020 normal
Typical July weather in Detroit: 28.9°C by day, 18.7°C at night, 81 mm of rain over 8.4 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, July scores 66 out of 100 (September leads the year at 86). Daylight is calculated as 14 h 59 from latitude 42.33°. Open-water sea temperature is 22.1°C (15 km from the place centre).
July at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 28.9°C, while nights average 18.7°C.
The measured monthly average is 81 mm across about 8 wet days.
There are about 14 h 59 between sunrise and sunset at mid-month, calculated from the place latitude.
July ranks 5 of 12 in our weather comparison; September ranks first.
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The nearest open-water NOAA OISST 1991–2020 cell averages 22.1°C in July. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
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The weather comparison for Detroit is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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