July weather forecast
Nashville, IL

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Weather in July

July is a tropical summer month in Nashville, Illinois, with an average temperature ranging between min 68.4°F (20.2°C) and max 86°F (30°C).

Temperature

July, marked by an average high-temperature of 86°F (30°C) and a low-temperature of 68.4°F (20.2°C), is the warmest month.

Heat index

July's mean heat index is calculated to be a very hot 98.6°F (37°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Nashville, Illinois, the average relative humidity in July is 79%.

Rainfall

In Nashville, during July, the rain falls for 18.1 days and regularly aggregates up to 3.7" (94mm) of precipitation. Throughout the year, in Nashville, there are 166.8 rainfall days, and 37.83" (961mm) of precipitation is accumulated.

Snowfall

May through August and October are months without snowfall in Nashville.

Daylight

In July, the average length of the day in Nashville is 14h and 32min.
On the first day of July, sunrise is at 5:37 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:08 pm CDT.

Sunshine

In Nashville, the average sunshine in July is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Nashville?

Nashville's July weather, with an average high temperature of 86°F (30°C) and an average low temperature of 68.4°F (20.2°C), tends to be the warmest of the year.

Is it hot in Nashville during July?

July temperatures in Nashville, Illinois, vary between a high-temperature of 86°F (30°C) and a low-temperature of 68.4°F (20.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is calculated to be 98.6°F (37°C).

What is the average humidity in July in Nashville?

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

How much does it rain in Nashville in July?

In Nashville, in July, during 18.1 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.

When it does not snow in Nashville?

In Nashville, Illinois, snow does not fall in May through August and October.

What is the average length of the day in July in Nashville?

In Nashville, Illinois, the average day length in July is 14h and 32min.

When is the sunrise / sunset in July in Nashville?

In July, on the first day of the month, sunrise is at 5:37 am and sunset at 8:25 pm. On the last day of the month, in Nashville, Illinois, sunrise is at 5:59 am and sunset at 8:08 pm CDT.

How long on average sun shines in July in Nashville?

In July, the average sunshine duration is 10.4h.

What is the month with the highest UV index in Nashville?

The months with the highest UV index in Nashville, Illinois, are May through August, with an average maximum UV index of 6.

What is the UV index reading in July in Nashville?

The average daily maximum UV index in July in Nashville is 6. A UV Index of 6 to 7 symbolizes 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
Nashville, IL

Average temperature in July - Nashville, IL
  • Average high temperature in July: 86°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 68.4°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in July
Nashville, IL

Average pressure in July - Nashville, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Nashville, IL

Average wind speed in July - Nashville, IL
  • Average wind speed in July: 5.7mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

Average humidity in July
Nashville, IL

Average humidity in July - Nashville, IL
  • Average humidity in July: 79%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Nashville, IL

Average rainfall in July - Nashville, IL
  • Average rainfall in July: 3.7"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in July
Nashville, IL

Average rainfall days in July - Nashville, IL
  • Average rainfall days in July: 18.1 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (9.2 days).

Average snowfall in July
Nashville, IL

Average snowfall in July - Nashville, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and October (0").

Average snowfall days in July
Nashville, IL

Average snowfall days in July - Nashville, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Nashville, IL

Average daylight in July / Average sunshine in July - Nashville, IL
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in July
Nashville, IL

Average sunshine days in July - Nashville, IL
  • Average sunshine days in July: 10.3 days

The months with the most sunshine days are October and November (17.5 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in July
Nashville, IL

Average UV index in July - Nashville, IL
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in July
Nashville, IL

Average cloud cover in July - Nashville, IL
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in July
Nashville, IL

Average visibility in July - Nashville, IL
  • Average visibility in July: 6mi

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

Nashville, Illinois, USA

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