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
As March gives way to April, the average high-temperature displays an increase, moving from a frosty 44.2°F (6.8°C) to a cool 55.2°F (12.9°C). During the nights in April, an average low-temperature of 41.2°F (5.1°C) is observed.Humidity
The average relative humidity in April in Oak Lawn is 75%.Rainfall
In Oak Lawn, in April, during 15.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, in Oak Lawn, there are 147.7 rainfall days, and 23.62" (600mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 2.3 snowfall days, in April, Oak Lawn aggregates 1.89" (48mm) of snow. Throughout the year, there are 42.4 snowfall days, and 11.61" (295mm) of snow is accumulated.Daylight
In Oak Lawn, the average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 6:32 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:48 pm CDT.
Sunshine
The average sunshine in April in Oak Lawn is 7.8h.UV index
In Oak Lawn, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 during April translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Oak Lawn have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Oak Lawn have in April?
What is the UV index intensity in April?
Average temperature in April
Oak Lawn, IL
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in April: 41.2°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
Oak Lawn, 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
Oak Lawn, IL
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Oak Lawn, IL
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Oak Lawn, IL
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in April
Oak Lawn, IL
- Average rainfall days in April: 15.1 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in April
Oak Lawn, IL
- Average snowfall in April: 1.89"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Oak Lawn, IL
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Oak Lawn, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Oak Lawn, IL
- Average sunshine days in April: 11.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in April
Oak Lawn, 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
Oak Lawn, IL
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Oak Lawn, IL
- Average visibility in April: 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).
Oak Lawn, Illinois, USA
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