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
The shift into April in Oak Lawn is marked by a rise in the average high-temperature, moving from March's frosty 44.2°F (6.8°C) to a fresh 55.2°F (12.9°C). Oak Lawn encounters a steady low-temperature average of 41.2°F (5.1°C) throughout the month of April.Humidity
The average relative humidity in April in Oak Lawn is 75%.Rainfall
In Oak Lawn, in April, it is raining for 15.1 days, with typically 2.32" (59mm) of accumulated precipitation. In Oak Lawn, Illinois, during the entire year, the rain falls for 147.7 days and collects up to 23.62" (600mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Oak Lawn. During 2.3 snowfall days, in April, Oak Lawn aggregates 1.89" (48mm) of snow. In Oak Lawn, during the entire year, snow falls for 42.4 days and aggregates up to 11.61" (295mm) of snow.Daylight
In Oak Lawn, the average length of the day in April is 13h and 22min.On the first day of April in Oak Lawn, 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 is 7.8h.UV index
In Oak Lawn, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In April, an average UV index of 3 transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What are April temperatures in Oak Lawn?
What is the average humidity in April in Oak Lawn?
How many days does it rain in April in Oak Lawn?
What is the last month it snows in Oak Lawn?
How many hours of daylight does Oak Lawn have in April?
When are sunrise and sunset in April in Oak Lawn?
How many hours of sunshine does Oak Lawn have in April?
How high is the UV index in April in Oak Lawn?
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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