July weather forecast
New Lenox, IL

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Weather in July

July, the same as June, is a moderately hot summer month in New Lenox, Illinois, with an average temperature ranging between min 64.9°F (18.3°C) and max 81.7°F (27.6°C).

Temperature

July stands out as New Lenox's warmest month, with temperatures ranging between an average high of 81.7°F (27.6°C) and a low of 64.9°F (18.3°C).

Heat index

The average heat index in July is calculated to be a tropical 87.8°F (31°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In New Lenox, the average relative humidity in July is 81%.

Rainfall

In New Lenox, Illinois, in July, it is raining for 17.3 days, with typically 3.23" (82mm) of accumulated precipitation. In New Lenox, during the entire year, the rain falls for 149.8 days and collects up to 31.26" (794mm) of precipitation.

Snowfall

May through September are months without snowfall in New Lenox.

Daylight

The average length of the day in July is 14h and 50min.
On the first day of the month, sunrise is at 5:22 am and sunset at 8:29 pm. On the last day of July, sunrise is at 5:46 am and sunset at 8:10 pm CDT.

Sunshine

In July, the average sunshine is 9.4h.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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 New Lenox?

July is the month when New Lenox sees the average highest temperatures, with a high of 81.7°F (27.6°C) and a low of 64.9°F (18.3°C).

What is the average July temperature in New Lenox?

During July, New Lenox experiences an average high-temperature of 81.7°F (27.6°C) and a low-temperature of 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 87.8°F (31°C).

What is the average humidity in July in New Lenox?

The average relative humidity in July in New Lenox is 81%.

How many days does it rain in July in New Lenox?

In July, in New Lenox, the rain falls for 17.3 days. Throughout July, 3.23" (82mm) of precipitation is accumulated.

When it does not snow in New Lenox?

In New Lenox, snow does not fall in May through September.

How many hours of daylight does New Lenox have in July?

In New Lenox, the average day length in July is 14h and 50min.

When is the sunrise / sunset in July in New Lenox?

On the first day of July in New Lenox, Illinois, sunrise is at 5:22 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:10 pm CDT.

How many hours of sunshine does New Lenox have in July?

The average sunshine duration in July is 9.4h.

What is the month with the highest UV index in New Lenox?

The months with the highest UV index in New Lenox, Illinois, are June and July, with an average maximum UV index of 6.

What is the UV index reading in July in New Lenox?

In New Lenox, the average daily maximum UV index in July is 6. A UV Index value 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
New Lenox, IL

Average temperature in July - New Lenox, IL
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in July
New Lenox, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
New Lenox, IL

Average wind speed in July - New Lenox, IL
  • Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in July
New Lenox, IL

Average humidity in July - New Lenox, IL
  • Average humidity in July: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in July
New Lenox, IL

Average rainfall in July - New Lenox, IL
  • Average rainfall in July: 3.23"

The wettest month (with the highest rainfall) is May (4.21").
The driest months (with the least rainfall) are February and December (1.61").

Average rainfall days in July
New Lenox, IL

Average rainfall days in July - New Lenox, IL
  • Average rainfall days in July: 17.3 days

The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in July
New Lenox, IL

Average snowfall in July - New Lenox, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
New Lenox, IL

Average snowfall days in July - New Lenox, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
New Lenox, IL

Average daylight in July / Average sunshine in July - New Lenox, IL
  • Average daylight in July: 14h and 5min

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

  • Average sunshine in July: 9h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in July
New Lenox, IL

Average sunshine days in July - New Lenox, IL
  • Average sunshine days in July: 11.1 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.7 days).

Average UV index in July
New Lenox, IL

Average UV index in July - New Lenox, IL
  • Average UV index in July: 6

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

Average cloud cover in July
New Lenox, IL

Average cloud cover in July - New Lenox, IL
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in July
New Lenox, IL

Average visibility in July - New Lenox, IL
  • Average visibility in July: 5mi

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

New Lenox, Illinois, USA

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