April weather forecast
Oak Park, IL

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Weather in April

April is known for the substantial amount of rain in Oak Park, with monthly precipitation reaching its highest point at 3.62" (92mm). As it restores the verdant, blossoming landscape, rain brings the distinct refreshment characteristic of spring to the city. The warming trend continues, and weather fluctuates from sunny days to cloudy afternoons. Increased wind activity combined with the rising heat may occasionally create stormy conditions. Even with the temperamental weather, April in Oak Park brings delightful changes to the urban landscape with its blooming parks and vibrant streets.

Temperature

The shift into April in Oak Park is accompanied by a temperature increase, with the average high-temperature rising from a chilly 43.2°F (6.2°C) in March to a cool 53.2°F (11.8°C). The average temperature during April nights dips to an icy 40.5°F (4.7°C).

Humidity

The average relative humidity in April is 75%.

Rainfall

In Oak Park, in April, it is raining for 16.8 days, with typically 3.62" (92mm) of accumulated precipitation. Throughout the year, in Oak Park, Illinois, there are 157.8 rainfall days, and 33.7" (856mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In April, it is snowing for 1.8 days. Throughout April, 1.97" (50mm) of snow is accumulated. Throughout the year, there are 40.3 snowfall days, and 16.81" (427mm) of snow is accumulated.

Daylight

In April, the average length of the day in Oak Park is 13h and 23min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of April, in Oak Park, Illinois, sunrise is at 5:47 am and sunset at 7:49 pm CDT.

Sunshine

In Oak Park, the average sunshine in April is 7.8h.

UV index

The average daily maximum UV index in April in Oak Park, Illinois, is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

What are the temperatures in Oak Park in April?

During April, Oak Park experiences an average high-temperature of 53.2°F (11.8°C) and a low-temperature of 40.5°F (4.7°C).

What is the average humidity in April in Oak Park?

The average relative humidity in April in Oak Park is 75%.

How much does it rain in Oak Park in April?

In April, the rain falls for 16.8 days. Throughout April, 3.62" (92mm) of precipitation is accumulated.

How much does it snow in Oak Park in April?

In Oak Park, in April, during 1.8 snowfall days, 1.97" (50mm) of snow is typically accumulated.

What is the average length of the day in April in Oak Park?

In Oak Park, Illinois, the average day length in April is 13h and 23min.

When are sunrise and sunset in April in Oak Park?

In April, on the first day of the month, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of the month, in Oak Park, Illinois, sunrise is at 5:47 am and sunset at 7:49 pm CDT.

How many hours of sunshine does Oak Park have in April?

The average sunshine duration in April in Oak Park is 7.8h.

What is the UV index intensity in April in Oak Park?

In April, the average daily maximum UV index in Oak Park is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Oak Park, IL

Average temperature in April - Oak Park, IL
  • Average high temperature in April: 53.2°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in April: 40.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in April
Oak Park, IL

Average pressure in April - Oak Park, 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 Park, IL

Average wind speed in April - Oak Park, IL
  • Average wind speed in April: 10.3mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in April
Oak Park, IL

Average humidity in April - Oak Park, IL
  • Average humidity in April: 75%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in April
Oak Park, IL

Average rainfall in April - Oak Park, IL
  • Average rainfall in April: 3.62"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.57").

Average rainfall days in April
Oak Park, IL

Average rainfall days in April - Oak Park, IL
  • Average rainfall days in April: 16.8 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in April
Oak Park, IL

Average snowfall in April - Oak Park, IL
  • Average snowfall in April: 1.97"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Oak Park, IL

Average snowfall days in April - Oak Park, IL
  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Oak Park, IL

Average daylight in April / Average sunshine in April - Oak Park, 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 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in April
Oak Park, IL

Average sunshine days in April - Oak Park, IL
  • Average sunshine days in April: 10.2 days

The month with the most sunshine days is December (16.7 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in April
Oak Park, IL

Average UV index in April - Oak Park, IL
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in April
Oak Park, IL

Average cloud cover in April - Oak Park, IL
  • Average cloud cover in April: 48

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in April
Oak Park, IL

Average visibility in April - Oak Park, 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 Park, Illinois, USA

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