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 Illinois City, the month of July registers the highest temperatures, averaging 81.7°F (27.6°C) at the peak and 65.1°F (18.4°C) at the lowest.Heat index
July's average heat index is calculated to be a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Always consider that heat index estimations are for light winds and places in the shade. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
The months with the highest humidity are January and July, with an average relative humidity of 83%.Rainfall
In July, in Illinois City, Illinois, the rain falls for 15 days. Throughout July, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 128 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Illinois City.Daylight
The average length of the day in July is 14h and 49min.On the first day of the month, sunrise is at 5:34 am and sunset at 8:40 pm. On the last day of July, sunrise is at 5:58 am and sunset at 8:21 pm CDT.
Sunshine
With an average of 10.3h of sunshine, July has the most sunshine of the year in Illinois City, Illinois.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index in Illinois City. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 6 in July transforms into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What are the warmest months in Illinois City?
What are July temperatures in Illinois City?
What is the most humid month in Illinois City?
What is the average humidity in July in Illinois City?
How many days does it rain in July in Illinois City?
When it does not snow in Illinois City?
What is the average length of the day in July in Illinois City?
What time are sunrise and sunset in July in Illinois City?
What month has the most sunshine in Illinois City?
How long on average sun shines in July in Illinois City?
What are the months with the highest UV index in Illinois City?
What is the UV index intensity in July in Illinois City?
Average temperature in July
Illinois City, 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 (28.2°F).
- Average low temperature in July: 65.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in July
Illinois City, IL
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Illinois City, IL
- Average wind speed in July: 6.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in July
Illinois City, IL
- Average humidity in July: 83%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Illinois City, IL
- Average rainfall in July: 2.48"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in July
Illinois City, IL
- Average rainfall days in July: 15 days
The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in July
Illinois City, IL
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Illinois City, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10.3 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
Illinois City, 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: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in July
Illinois City, IL
- Average sunshine days in July: 11.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in July
Illinois City, IL
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Illinois City, IL
- Average cloud cover in July: 30
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in July
Illinois City, 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).
Illinois City, Illinois, USA
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