July weather forecast
Ann Arbor, MI

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The vast University of Michigan Law School Campus in Ann Arbor, Michigan
The vast University of Michigan Law School Campus in Ann Arbor, Michigan

Weather in July

The peak of summer in Ann Arbor is in July, with scorching temperatures throughout the day. Residents and tourists flock to local pools, rivers, and lakes to cool down and enjoy the high summer. Despite the humidity, the evenings are perfect for exploring and enjoying the city's vibrant nightlife. Even though daylight hours see a slight dip compared to June, July is still one of the sunniest months. Its defining characteristic is the high temperature, reaching an annual peak of 79.9°F (26.6°C), making it the hottest month of the year.

Temperature

The warmest period tends to be July, when average temperatures fluctuate between a high of 79.9°F (26.6°C) and a low of 62.2°F (16.8°C).

Humidity

In July, the average relative humidity in Ann Arbor is 79%.

Rainfall

In Ann Arbor, Michigan, during July, the rain falls for 16.8 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Ann Arbor, during the entire year, the rain falls for 144.9 days and collects up to 18.82" (478mm) of precipitation.

Snowfall

June through September are months without snowfall in Ann Arbor, Michigan.

Daylight

In July, the average length of the day is 14h and 55min.
On the first day of July, sunrise is at 6:02 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:55 pm EDT.

Sunshine

July has the most sunshine of the year in Ann Arbor, Michigan, with an average of 10.5h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What part of the year is the hottest in Ann Arbor?

July stands out as Ann Arbor's warmest month, with an average high-temperature of 79.9°F (26.6°C) and a low-temperature of 62.2°F (16.8°C).

What are the temperatures in Ann Arbor in July?

An average high-temperature, in July, in Ann Arbor, is 79.9°F (26.6°C) and the average low-temperature is 62.2°F (16.8°C).

What is the average humidity in July in Ann Arbor?

In July, the average relative humidity in Ann Arbor is 79%.

How much does it rain in Ann Arbor in July?

In Ann Arbor, during July, the rain falls for 16.8 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Ann Arbor?

In Ann Arbor, Michigan, snow does not fall in June through September.

What is the average length of the day in July in Ann Arbor?

In July, the average day length in Ann Arbor is 14h and 55min.

When is the sunrise / sunset in July in Ann Arbor?

In July, on the first day of the month, sunrise is at 6:02 am and sunset at 9:15 pm. On the last day of the month, in Ann Arbor, Michigan, sunrise is at 6:27 am and sunset at 8:55 pm EDT.

What month has the most sunshine in Ann Arbor?

July has the most sunshine of the year in Ann Arbor, Michigan, with an average of 10.5h of sunshine.

How long on average sun shines in July in Ann Arbor?

In July, the average sunshine duration in Ann Arbor, Michigan, is 10.5h.

What is the month with the highest UV index in Ann Arbor?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in July in Ann Arbor?

The average daily maximum UV index in July in Ann Arbor is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Ann Arbor, MI

Average temperature in July - Ann Arbor, MI
  • Average high temperature in July: 79.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in July: 62.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in July
Ann Arbor, MI

Average pressure in July - Ann Arbor, MI
  • Average pressure in July: 29.96"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Ann Arbor, MI

Average wind speed in July - Ann Arbor, MI
  • Average wind speed in July: 6.4mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in July
Ann Arbor, MI

Average humidity in July - Ann Arbor, MI
  • Average humidity in July: 79%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in July
Ann Arbor, MI

Average rainfall in July - Ann Arbor, MI
  • Average rainfall in July: 2.2"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is December (0.87").

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Average rainfall days in July
Ann Arbor, MI

Average rainfall days in July - Ann Arbor, MI
  • Average rainfall days in July: 16.8 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5.2 days).

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Average snowfall in July
Ann Arbor, MI

Average snowfall in July - Ann Arbor, MI
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Ann Arbor, MI

Average snowfall days in July - Ann Arbor, MI
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Ann Arbor, MI

Average daylight in July / Average sunshine in July - Ann Arbor, MI
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in July
Ann Arbor, MI

Average sunshine days in July - Ann Arbor, MI
  • Average sunshine days in July: 10.3 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in July
Ann Arbor, MI

Average UV index in July - Ann Arbor, MI
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in July
Ann Arbor, MI

Average cloud cover in July - Ann Arbor, MI
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in July
Ann Arbor, MI

Average visibility in July - Ann Arbor, MI
  • Average visibility in July: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Ann Arbor, Michigan, USA

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