July weather forecast
Stone Park, IL

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Weather in July

July, like June, in Stone Park, Illinois, is another warm summer month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 66.6°F (19.2°C).

Temperature

July is the month that records the highest temperatures, with averages ranging from a high of 81.9°F (27.7°C) to a low of 66.6°F (19.2°C).

Heat index

The heat index value during July is evaluated at a tropical 87.8°F (31°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In July, the average relative humidity is 76%.

Rainfall

In Stone Park, during July, the rain falls for 17.3 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Stone Park, during the entire year, the rain falls for 149.4 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

June through September are months without snowfall in Stone Park.

Daylight

In Stone Park, the average length of the day in July is 14h and 52min.
On the first day of the month, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of July, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

Sunshine

The months with the most sunshine are July and August, with an average of 10.1h 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 risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during July translates into the following guidance:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

During the warmest month in Stone Park, July, temperatures average a high of 81.9°F (27.7°C) and a low of 66.6°F (19.2°C).

What is the average July temperature?

The average high-temperature and low-temperature during July are 81.9°F (27.7°C) and 66.6°F (19.2°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is evaluated at 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July is 76%.

How many days does it rain in July?

In Stone Park, in July, during 17.3 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July in Stone Park?

The average day length in July is 14h and 52min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

What are the months with the most sunshine?

The months with the most sunshine are July and August, with an average of 10.1h of sunshine.

How many hours of sunshine does Stone Park have in July?

The average sunshine duration in July is 10.1h.

What is the month with the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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
Stone Park, IL

Average temperature in July - Stone Park, IL
  • Average high temperature in July: 81.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in July: 66.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in July
Stone Park, IL

Average pressure in July - Stone Park, 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
Stone Park, IL

Average wind speed in July - Stone Park, IL
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in July
Stone Park, IL

Average humidity in July - Stone Park, IL
  • Average humidity in July: 76%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Stone Park, IL

Average rainfall in July - Stone Park, IL
  • Average rainfall in July: 2.87"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").

Average rainfall days in July
Stone Park, IL

Average rainfall days in July - Stone Park, IL
  • Average rainfall days in July: 17.3 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in July
Stone Park, IL

Average snowfall in July - Stone Park, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Stone Park, IL

Average snowfall days in July - Stone Park, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Stone Park, IL

Average daylight in July / Average sunshine in July - Stone Park, IL
  • 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 months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Stone Park, IL

Average sunshine days in July - Stone Park, IL
  • Average sunshine days in July: 9.5 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in July
Stone Park, IL

Average UV index in July - Stone Park, IL
  • Average UV index in July: 6

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

Average cloud cover in July
Stone Park, IL

Average cloud cover in July - Stone Park, IL
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in July
Stone Park, IL

Average visibility in July - Stone Park, 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).

Stone Park, Illinois, USA

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