Dearborn, MI weather in July
Dearborn is warm and often humid in July, with frequent rain: highs average 84°F and nights drop to about 62°F. Rain falls on about 11 days. This is the peak of the warm season in Dearborn.
- Normal high
- 84°F
- Normal low
- 62°F
- Wet days
- 11
- 3.5 in total
- Muggy days
- 10
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 83°F | 83°F |
| Normal low | 62°F | 62°F |
| Chance of a wet day | 34% | 34% |
| Sunrise / sunset | 5:59 am / 9:13 pm | 6:24 am / 8:53 pm |
| Daylight | 15.2 h | 14.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical July day
- 6 am67°Fdew point 61°F
- 9 am75°Fdew point 61°F
- Noon80°Fdew point 61°F
- 3 pm82°Fdew point 60°F
- 6 pm80°Fdew point 60°F
- 9 pm75°Fdew point 61°F
NOAA hourly normals (local standard time) from Detroit City Airport (10 mi away); average wind 7 mph; clear or few clouds in 49% of daytime hours, mostly cloudy or overcast in 30%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F5 of 31
- Hot dayshigh 90°F or more7 of 31
- Muggy daysdaily mean dew point 65°F or more10 of 31
- Wet daysat least 0.01 in of rain or melted snow11 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 3.5 in; a dry July brings about 2.5 in and a wet one about 4.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How July varies from year to year
- Warmest July, 1991-20202012: average high 91°F
- Coolest July1992: average high 79°F
- Wettest July2011: 7.7 in
- Driest July2001: 1.2 in
- Highest reading102°F (July 18, 2012)
- Lowest reading41°F (July 2, 2001)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 79°F | 84°F | 82°F |
| Normal low | 58°F | 62°F | 61°F |
| Wet days | 11 | 11 | 10 |
| Comfortable days | 11 | 5 | 7 |
| Daylight | 15.2 h | 14.9 h | 13.8 h |
Highs change by +5°F from June and -2°F into August.
How Dearborn ranks in July
- Normal high263rd warmest of 378 cities; 2nd of 8 in Michigan
- Wet days245th driest of 378
- Comfortable days118th most of 340
What to pack for Dearborn in July
- A rain jacket or umbrella – rain on about 11 days
- Sunglasses and sunscreen – about 14.9 hours of daylight and highs near 84°F
Heating and cooling
July has 6 heating degree days and 247 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Dearborn in July?
The normal high is 84°F and the normal low is 62°F. From 1991 to 2020 the hottest July reading was 102°F (July 18, 2012).
Does it rain a lot in Dearborn in July?
About 11 days in July have at least 0.01 in of precipitation, and the normal total is 3.5 in. The wettest July in 1991-2020 was in 2011 (7.7 in); the driest was in 2001 (1.2 in).
Is July a good time to visit Dearborn?
July ranks 7th of 12 months on our comfort score for Dearborn (56 out of 100). It has about 5 comfortable days and about 7 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature and frost dates: Dearborn (USC00202015), 3.1 mi W of the city center, 605 ft . NOAA normals and daily records, 1991-2020.
- Rain, snowfall and snow depth: Detroit Metro Airport (USW00094847), 10 mi SW of the city center, 631 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Detroit City Airport (USW00014822), 10 mi NE of the city center, 626 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Flint Bishop Intl Airport (USW00014826), 53 mi NNW of the city center, 770 ft (179 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Detroit Metro Wayne County Airport (725370-94847), 10 mi SW of the city center, 630 ft . Hourly observations, 1991-2020.