April weather forecast
Prospect Heights, IL

Share

Weather in April

April is a fresh spring month in Prospect Heights, Illinois, with an average temperature varying between 40.1°F (4.5°C) and 54.3°F (12.4°C).

Temperature

Prospect Heights in April shows a temperature shift, moving from an average high of a frosty 43.5°F (6.4°C) in March to a cool 54.3°F (12.4°C). An average nighttime temperature of 40.1°F (4.5°C) is observed during April.

Humidity

In April, the average relative humidity is 75%.

Rainfall

In April, the rain falls for 16 days. Throughout April, 3.54" (90mm) of precipitation is accumulated. Throughout the year, in Prospect Heights, there are 153.3 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Prospect Heights, in April, during 1.9 snowfall days, 2.52" (64mm) of snow is typically accumulated. In Prospect Heights, during the entire year, snow falls for 43.6 days and aggregates up to 17.95" (456mm) of snow.

Daylight

In April, the average length of the day 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 Prospect Heights, sunrise is at 5:47 am and sunset at 7:50 pm CDT.

Sunshine

The average sunshine in April in Prospect Heights is 7.5h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In April, the UV index of 3 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Prospect Heights?

In Prospect Heights, in April, the average high-temperature is 54.3°F (12.4°C), and the average low-temperature is 40.1°F (4.5°C).

What is the average humidity in April in Prospect Heights?

In Prospect Heights, the average relative humidity in April is 75%.

How much does it rain in Prospect Heights in April?

In Prospect Heights, during April, the rain falls for 16 days and regularly aggregates up to 3.54" (90mm) of precipitation.

How many days does it snow in April in Prospect Heights?

In Prospect Heights, Illinois, in April, during 1.9 snowfall days, 2.52" (64mm) of snow is typically accumulated.

How many hours of daylight does Prospect Heights have in April?

In April, the average day length is 13h and 23min.

When is the sunrise / sunset in April in Prospect Heights?

On the first day of April, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:50 pm CDT.

How many hours of sunshine does Prospect Heights have in April?

In Prospect Heights, the average sunshine duration in April is 7.5h.

How high is the UV index in April in Prospect Heights?

In April, the average daily maximum UV index in Prospect Heights is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Prospect Heights, IL

Average temperature in April - Prospect Heights, IL
  • Average high temperature in April: 54.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in April: 40.1°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in April
Prospect Heights, IL

Average pressure in April - Prospect Heights, 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
Prospect Heights, IL

Average wind speed in April - Prospect Heights, IL
  • Average wind speed in April: 9.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in April
Prospect Heights, IL

Average humidity in April - Prospect Heights, 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
Prospect Heights, IL

Average rainfall in April - Prospect Heights, IL
  • Average rainfall in April: 3.54"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is December (1.46").

Average rainfall days in April
Prospect Heights, IL

Average rainfall days in April - Prospect Heights, IL
  • Average rainfall days in April: 16 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in April
Prospect Heights, IL

Average snowfall in April - Prospect Heights, IL
  • Average snowfall in April: 2.52"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Prospect Heights, IL

Average snowfall days in April - Prospect Heights, IL
  • Average snowfall days in April: 1.9 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Prospect Heights, IL

Average daylight in April / Average sunshine in April - Prospect Heights, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in April
Prospect Heights, IL

Average sunshine days in April - Prospect Heights, IL
  • Average sunshine days in April: 10.8 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in April
Prospect Heights, IL

Average UV index in April - Prospect Heights, 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
Prospect Heights, IL

Average cloud cover in April - Prospect Heights, IL
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in April
Prospect Heights, IL

Average visibility in April - Prospect Heights, 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).

Prospect Heights, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location