Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's onset brings a rise in the average high-temperature, moving from a chilly 45.7°F (7.6°C) in March to a moderate 57°F (13.9°C). Lemont experiences an average low-temperature reading of 41°F (5°C) throughout April.Humidity
The average relative humidity in April is 74%.Rainfall
In Lemont, in April, during 15 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, in Lemont, there are 145.4 rainfall days, and 22.83" (580mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Lemont. In April, in Lemont, it is snowing for 2.2 days. Throughout April, 1.77" (45mm) of snow is accumulated. In Lemont, during the entire year, snow falls for 44.4 days and aggregates up to 11.93" (303mm) of snow.Daylight
The average length of the day in April in Lemont, Illinois, is 13h and 22min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:17 pm. On the last day of April, in Lemont, sunrise is at 5:48 am and sunset at 7:49 pm CDT.
Sunshine
The average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 3 in April transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the temperature in April in Lemont?
What is the average humidity in April in Lemont?
How much does it rain in Lemont in April?
How many days does it snow in April in Lemont?
How many hours of daylight does Lemont have in April?
When is the sunrise / sunset in April in Lemont?
How long on average sun shines in April in Lemont?
How high is the UV index in April in Lemont?
Average temperature in April
Lemont, IL
- Average high temperature in April: 57°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 April: 41°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 April
Lemont, IL
- Average pressure in April: 29.95"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 April
Lemont, IL
- Average wind speed in April: 9.5mph
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 April
Lemont, IL
- Average humidity in April: 74%
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 April
Lemont, IL
- Average rainfall in April: 2.4"
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 April
Lemont, IL
- Average rainfall days in April: 15 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 April
Lemont, IL
- Average snowfall in April: 1.77"
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 April
Lemont, IL
- Average snowfall days in April: 2.2 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 April /
Average sunshine in April
Lemont, IL
- Average daylight in April: 13h and 2min
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 April: 7h and 4min
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 April
Lemont, IL
- Average sunshine days in April: 11.1 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 April
Lemont, IL
- Average UV index in April: 3
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 April
Lemont, IL
- Average cloud cover in April: 49
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 April
Lemont, IL
- Average visibility in April: 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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