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
Lemont records the warmest temperatures in July, averaging a high of 81.9°F (27.7°C) and a low of 65.7°F (18.7°C).Heat index
During July, the heat index is calculated to be a hot 87.8°F (31°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.In the scope of the heat index, its values resonate with shade and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
The average relative humidity in July in Lemont is 79%.Rainfall
In July, in Lemont, the rain falls for 18.1 days. Throughout July, 2.72" (69mm) of precipitation is accumulated. In Lemont, during the entire year, the rain falls for 145.4 days and collects up to 22.83" (580mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Lemont, the average length of the day in July is 14h and 51min.On the first day of the month, sunrise is at 5:21 am and sunset at 8:30 pm. On the last day of July, sunrise is at 5:46 am and sunset at 8:10 pm CDT.
Sunshine
The months with the most sunshine in Lemont, Illinois, are July and August, with an average of 9.9h of sunshine.UV index
The months with the highest UV index in Lemont are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 during July translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What time of the year is the hottest in Lemont?
What are the temperatures in Lemont in July?
What is the average humidity in July in Lemont?
How many days does it rain in July in Lemont?
When it does not snow in Lemont?
How many hours of daylight does Lemont have in July?
When are sunrise and sunset in July in Lemont?
What are the months with the most sunshine in Lemont?
How long on average sun shines in July in Lemont?
When is the highest UV index in Lemont?
How high is the UV index in July in Lemont?
Average temperature in July
Lemont, 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: 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
Lemont, 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
Lemont, 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
Lemont, 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 (73%).
Average rainfall in July
Lemont, IL
- Average rainfall in July: 2.72"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in July
Lemont, IL
- Average rainfall days in July: 18.1 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in July
Lemont, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Lemont, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Lemont, 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 48min).
Average sunshine days in July
Lemont, IL
- Average sunshine days in July: 9.3 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in July
Lemont, 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 December (UV index 1).
Average cloud cover in July
Lemont, IL
- Average cloud cover in July: 33
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in July
Lemont, 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).
Lemont, Illinois, USA
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