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
July, characterized by an average high temperature of 82°F (27.8°C) and a low temperature of 65.7°F (18.7°C), is generally the warmest month.Heat index
For most parts of July, the heat index is estimated at a hot 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In July, the average relative humidity in Lisle is 78%.Rainfall
In Lisle, in July, during 17.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In Lisle, during the entire year, the rain falls for 147.7 days and collects up to 23.43" (595mm) of precipitation.Snowfall
In Lisle, snow does not fall in June through September.Daylight
The average length of the day in July is 14h and 52min.On the first day of the month, sunrise is at 5:21 am and sunset at 8:31 pm. On the last day of July, in Lisle, sunrise is at 5:46 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in July in Lisle is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 6 in July translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What month is the hottest in Lisle?
What is the temperature in July in Lisle?
What is the average humidity in July in Lisle?
How many days does it rain in July in Lisle?
When it does not snow in Lisle?
How many hours of daylight does Lisle have in July?
When is the sunrise / sunset in July in Lisle?
How long on average sun shines in July in Lisle?
When is the highest UV index in Lisle?
What is the UV index reading in July in Lisle?
Average temperature in July
Lisle, IL
- Average high temperature in July: 82°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in July: 65.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in July
Lisle, 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
Lisle, IL
- Average wind speed in July: 6.3mph
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
Lisle, IL
- Average humidity in July: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in July
Lisle, IL
- Average rainfall in July: 2.76"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in July
Lisle, IL
- Average rainfall days in July: 17.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in July
Lisle, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Lisle, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Lisle, 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 month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in July
Lisle, IL
- Average sunshine days in July: 9.8 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in July
Lisle, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Lisle, IL
- Average cloud cover in July: 33
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in July
Lisle, IL
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Lisle, Illinois, USA
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