Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
In Carol Stream, July is the month with the highest recorded average temperatures, measuring a high of 81.5°F (27.5°C) and a low of 64.9°F (18.3°C).Heat index
July's mean heat index is calculated to be a hot 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in July is 79%.Rainfall
In Carol Stream, in July, during 14.3 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Carol Stream, during the entire year, the rain falls for 119.1 days and collects up to 10.83" (275mm) of precipitation.Snowfall
In Carol Stream, snow does not fall in May through September.Daylight
In July, the average length of the day is 14h and 52min.On the first day of July, sunrise is at 5:21 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:11 pm CDT.
Sunshine
The months with the most sunshine are July and August, with an average of 9.9h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during July translates into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What is the average July temperature?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
What is the average length of the day in July?
When is the sunrise / sunset in July?
What is the month with the most sunshine in Carol Stream?
How many hours of sunshine does Carol Stream have in July?
When is the highest UV index?
How high is the UV index in July?
Average temperature in July
Carol Stream, IL
- Average high temperature in July: 81.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.9°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 (16.7°F).
Average pressure in July
Carol Stream, 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
Carol Stream, IL
- Average wind speed in July: 6.3mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in July
Carol Stream, IL
- Average humidity in July: 79%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in July
Carol Stream, IL
- Average rainfall in July: 1.26"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February, November and December (0.51").
Average rainfall days in July
Carol Stream, IL
- Average rainfall days in July: 14.3 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in July
Carol Stream, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Carol Stream, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Carol Stream, 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: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in July
Carol Stream, IL
- Average sunshine days in July: 11.3 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in July
Carol Stream, 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
Carol Stream, IL
- Average cloud cover in July: 32
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in July
Carol Stream, 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).
Carol Stream, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location