Weather in Detroit in July 2025
- July is usually the hottest month of the year in Detroit;
Average weather
Average temperature in Detroit in July
The temperature in July is +82°F on average, with a range between a maximum of +91°F during the day and a minimum of +59°F at night.
The average maximum temperature goes down 11% by the end of the month, compared with the beginning of the month, from +84°F to +81°F.
Is Detroit warm or cold in July?
Detroit is typically warm in July.
Maximum temperatures go up compared to the previous month from +79°F to +82°F. The minimum temperature also goes up from +61°F to +66°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is the hottest month in Detroit, here is the comparison with other months:
Water temperature in Detroit in July
Water in Detroit in July is Comfortable. It varies from +66°F to +78°F, with an average of +72°F. The air temperature averaging +82°F is higher than the water temperature.
The water temperature in July is one of the warmest of the entire year:
Can you swim in Detroit in July?
Climate in Detroit in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +79°F | +82°F | +81°F | ||||
| Min. temperature | ||||||
| +37°F | +50°F | +43°F | ||||
| Max. temperature | ||||||
| +102°F | +100°F | +99°F | ||||
| Rainfall | ||||||
| 98 mm | 96 mm | 114 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +60°F | +72°F | +74°F | ||||
| Humidity | ||||||
| 65% | 66% | 71% | ||||
| Air pressure | ||||||
| 1013 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 7 | 8 | 8 | ||||
| Cloudy days | ||||||
| 6 | 6 | 7 | ||||
| Rainy days | ||||||
| 12 | 12 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +79°F to +82°F during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 98 mm to 96 mm. Humidity rises from 65% to 66%. The average wind speed doesn’t change much during July, staying around 3 m/s. The good news is there are likely to be more sunny days in July, from 7 to 8.
August brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Detroit is gradually decreasing during July, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last July in Detroit?
Climate Change Over the Years
The climate in Detroit in July has not changed that much over the last 43 years.
The average temperature was the lowest in 1992 (+56°F) and the highest in 1998 (+62°F). The driest year was 1999 with only 460 mm of rainfall, and the wettest year was 2023 with 1977 mm.
FAQ
Is July a good time to visit Detroit?
Can you sunbathe in Detroit in July?
Can you swim in Detroit in July?
Is Detroit rainy in July?
Is it sunny in Detroit in July?
Other cities in USA
Monthly weather in Detroit
Source of the data
For this page, we’ve looked at the typical weather in Detroit, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.