April weather forecast
Richton Park, IL

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Weather in April

April is a moderate spring month in Richton Park, Illinois, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 56.7°F (13.7°C).

Temperature

The shift from March to April sees an increase in the average high-temperature, transitioning from a frosty 45.5°F (7.5°C) to a mild 56.7°F (13.7°C). In Richton Park, April nights witness a steady temperature drop to a cold 41.7°F (5.4°C).

Humidity

In April, the average relative humidity is 75%.

Rainfall

In Richton Park, in April, during 16.8 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, in Richton Park, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Richton Park. April is the last month it regularly snows in Richton Park. During 1.9 snowfall days, in April, Richton Park aggregates 1.97" (50mm) of snow. In Richton Park, during the entire year, snow falls for 44.6 days and aggregates up to 16.46" (418mm) of snow.

Daylight

In April, the average length of the day in Richton Park 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, sunrise is at 5:47 am and sunset at 7:47 pm CDT.

Sunshine

The average sunshine in April is 7.6h.

UV index

The average daily maximum UV index in April in Richton Park is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in April interprets into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious. 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 average April temperature in Richton Park?

In April, the average high-temperature and low-temperature in Richton Park are 56.7°F (13.7°C) and 41.7°F (5.4°C) respectively.

What is the average humidity in April in Richton Park?

The average relative humidity in April in Richton Park, Illinois, is 75%.

How many days does it rain in April in Richton Park?

In April, in Richton Park, Illinois, the rain falls for 16.8 days. Throughout April, 3.43" (87mm) of precipitation is accumulated.

What is the last month it snows in Richton Park?

April is the last month it regularly snows in Richton Park, Illinois. During 1.9 snowfall days, in April, Richton Park aggregates 1.97" (50mm) of snow.

How many hours of daylight does Richton Park have in April?

In April, the average day length in Richton Park, Illinois, is 13h and 22min.

When are sunrise and sunset in April in Richton Park?

On the first day of April in Richton Park, Illinois, 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 7:47 pm CDT.

How long on average sun shines in April in Richton Park?

In Richton Park, the average sunshine duration in April is 7.6h.

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

The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Richton Park, IL

Average temperature in April - Richton Park, IL
  • Average high temperature in April: 56.7°F

The warmest month (with the highest average high temperature) is July (81.3°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 (18.9°F).

Average pressure in April
Richton Park, IL

Average pressure in April - Richton 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
Richton Park, IL

Average wind speed in April - Richton Park, IL
  • Average wind speed in April: 9.8mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in April
Richton Park, IL

Average humidity in April - Richton Park, 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 (73%).

Average rainfall in April
Richton Park, IL

Average rainfall in April - Richton Park, IL
  • Average rainfall in April: 3.43"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in April
Richton Park, IL

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

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).

Average snowfall in April
Richton Park, IL

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

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Richton Park, IL

Average snowfall days in April - Richton Park, IL
  • Average snowfall days in April: 1.9 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Richton Park, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in April
Richton Park, IL

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

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).

Average UV index in April
Richton Park, IL

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in April
Richton Park, IL

Average cloud cover in April - Richton Park, IL
  • Average cloud cover in April: 49

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in April
Richton Park, IL

Average visibility in April - Richton Park, IL
  • Average visibility in April: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Richton Park, Illinois, USA

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