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 transition from March to April brings a temperature rise, with average high-temperatures increasing from a frosty 45.9°F (7.7°C) to a mild 57°F (13.9°C). Oak Forest records an average nighttime low of 41.7°F (5.4°C) in April.Humidity
The average relative humidity in April in Oak Forest is 75%.Rainfall
In Oak Forest, in April, during 12.6 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 111.8 rainfall days, and 11.18" (284mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Oak Forest. During 1.3 snowfall days, in April, Oak Forest aggregates 0.71" (18mm) of snow. Throughout the year, in Oak Forest, there are 34.2 snowfall days, and 4.8" (122mm) of snow is accumulated.Daylight
In April, the average length of the day in Oak Forest is 13h and 22min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:16 pm. On the last day of April, in Oak Forest, sunrise is at 5:47 am and sunset at 7:48 pm CDT.
Sunshine
The average sunshine in April is 7.5h.UV index
In Oak Forest, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the temperature in April in Oak Forest?
What is the average humidity in April in Oak Forest?
How many days does it rain in April in Oak Forest?
What is the last month it snows in Oak Forest?
How many hours of daylight does Oak Forest have in April?
What time are sunrise and sunset in April in Oak Forest?
How long on average sun shines in April in Oak Forest?
What is the UV index intensity in April in Oak Forest?
Average temperature in April
Oak Forest, 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 (29.7°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in April
Oak Forest, 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 Forest, IL
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in April
Oak Forest, IL
- Average humidity in April: 75%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Oak Forest, IL
- Average rainfall in April: 1.14"
The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are January, February and December (0.55").
Average rainfall days in April
Oak Forest, IL
- Average rainfall days in April: 12.6 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in April
Oak Forest, IL
- Average snowfall in April: 0.71"
The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Oak Forest, IL
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (10.3 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 Forest, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 3min
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 April
Oak Forest, IL
- Average sunshine days in April: 15.1 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in April
Oak Forest, IL
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Oak Forest, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Oak Forest, 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 Forest, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
