July weather forecast
Decatur, MI

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Weather in July

July, like June, in Decatur, Michigan, is a moderately hot summer month, with an average temperature varying between 79.7°F (26.5°C) and 61.9°F (16.6°C).

Temperature

With average temperatures fluctuating between a high of 79.7°F (26.5°C) and a low of 61.9°F (16.6°C), July stands out as the warmest month.

Humidity

In Decatur, the average relative humidity in July is 82%.

Rainfall

In July, the rain falls for 14.8 days. Throughout July, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 139.4 rainfall days, and 20" (508mm) of precipitation is accumulated.

Snowfall

In Decatur, snow does not fall in June through September.

Daylight

In Decatur, the average length of the day in July is 14h and 53min.
On the first day of July, sunrise is at 6:12 am and sunset at 9:23 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 9:03 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.2h of sunshine.

UV index

The average daily maximum UV index in July is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in July interprets into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

July, characterized by an average high temperature of 79.7°F (26.5°C) and a low temperature of 61.9°F (16.6°C), is generally the warmest month in Decatur, Michigan.

What are the temperatures in July?

In July, in Decatur, the average high-temperature is 79.7°F (26.5°C), and the average low-temperature is 61.9°F (16.6°C).

What is the average humidity in July?

In Decatur, the average relative humidity in July is 82%.

How much does it rain in July?

In Decatur, in July, it is raining for 14.8 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

In Decatur, snow does not fall in June through September.

What is the average length of the day in July?

The average day length in July is 14h and 53min.

What time are sunrise and sunset in July?

On the first day of July in Decatur, sunrise is at 6:12 am and sunset at 9:23 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 9:03 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.2h of sunshine.

How many hours of sunshine does Decatur have in July?

In Decatur, the average sunshine duration in July is 10.2h.

How high is the UV index in July?

The average daily maximum UV index in July is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Decatur, MI

Average temperature in July - Decatur, MI
  • Average high temperature in July: 79.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in July: 61.9°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in July
Decatur, MI

Average pressure in July - Decatur, MI
  • Average pressure in July: 29.97"Hg

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

Average wind speed in July
Decatur, MI

Average wind speed in July - Decatur, MI
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in July
Decatur, MI

Average humidity in July - Decatur, MI
  • Average humidity in July: 82%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in July
Decatur, MI

Average rainfall in July - Decatur, MI
  • Average rainfall in July: 1.89"

The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in July
Decatur, MI

Average rainfall days in July - Decatur, MI
  • Average rainfall days in July: 14.8 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in July
Decatur, MI

Average snowfall in July - Decatur, MI
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Decatur, MI

Average snowfall days in July - Decatur, MI
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Decatur, MI

Average daylight in July / Average sunshine in July - Decatur, 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 12min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in July
Decatur, MI

Average sunshine days in July - Decatur, MI
  • Average sunshine days in July: 13.3 days

The month with the most sunshine days is March (14.4 days).
The month with the least sunshine days is January (9.8 days).

Average UV index in July
Decatur, MI

Average UV index in July - Decatur, MI
  • Average UV index in July: 5

The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in July
Decatur, MI

Average cloud cover in July - Decatur, MI
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Decatur, MI

Average visibility in July - Decatur, MI
  • Average visibility in July: 6mi

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

Decatur, Michigan, USA

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