April weather forecast
Carbondale, IL

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Weather in April

April weather in Carbondale, Illinois, is indicative of Spring, with temperatures advancing from 48.6°F (9.2°C) to 66.2°F (19°C). Rainfall reaches its peak for the year with 4.49" (114mm) on average, providing nourishment for the blooming vegetation. The increase in daylight hours coupled with fewer clouds results in a greater number of sunny days. This period often sees a visible improvement in visibility and a drop in wind speed. Therefore, it is an ideal month for outdoor activities and exploration.

Temperature

With the onset of April, Carbondale's average high-temperature experiences a rise, moving from March's fresh 55.2°F (12.9°C) to an enjoyable 66.2°F (19°C). Throughout April, a steady low-temperature average of 48.6°F (9.2°C) is noted.

Humidity

In April, the average relative humidity is 77%.

Rainfall

The month with the most rainfall is April, when the rain falls for 15.5 days and typically aggregates up to 4.49" (114mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.4 snowfall days, in April, Carbondale aggregates 0.08" (2mm) of snow. In Carbondale, during the entire year, snow falls for 15.9 days and aggregates up to 5.71" (145mm) of snow.

Daylight

In April, the average length of the day in Carbondale is 13h and 12min.
On the first day of April in Carbondale, Illinois, sunrise is at 6:40 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:46 pm CDT.

Sunshine

In Carbondale, the average sunshine in April is 8.7h.

UV index

In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during April leads to these instructions:
Ensure safety - Sun damage prevention is strongly urged. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Carbondale in April?

The high-temperature, in April, in Carbondale, records 66.2°F (19°C), while the low-temperature is 48.6°F (9.2°C).

What is the average humidity in April in Carbondale?

In Carbondale, Illinois, the average relative humidity in April is 77%.

What is the wettest month in Carbondale?

The month with the most rainfall in Carbondale is April, when the rain falls for 15.5 days and typically aggregates up to 4.49" (114mm) of precipitation.

How many days does it rain in April in Carbondale?

In April, the rain falls for 15.5 days. Throughout April, 4.49" (114mm) of precipitation is accumulated.

What is the last month it snows in Carbondale?

April is the last month it regularly snows in Carbondale. During 0.4 snowfall days, in April, Carbondale aggregates 0.08" (2mm) of snow.

How many hours of daylight does Carbondale have in April?

In Carbondale, Illinois, the average day length in April is 13h and 12min.

When are sunrise and sunset in April in Carbondale?

In April, on the first day of the month, sunrise is at 6:40 am and sunset at 7:20 pm. On the last day of the month, in Carbondale, sunrise is at 6:01 am and sunset at 7:46 pm CDT.

How many hours of sunshine does Carbondale have in April?

In Carbondale, the average sunshine duration in April is 8.7h.

How high is the UV index in April in Carbondale?

In Carbondale, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Carbondale, IL

Average temperature in April - Carbondale, IL
  • Average high temperature in April: 66.2°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in April: 48.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in April
Carbondale, IL

Average pressure in April - Carbondale, IL
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Carbondale, IL

Average wind speed in April - Carbondale, IL
  • Average wind speed in April: 8.9mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in April
Carbondale, IL

Average humidity in April - Carbondale, IL
  • Average humidity in April: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in April
Carbondale, IL

Average rainfall in April - Carbondale, IL
  • Average rainfall in April: 4.49"

The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in April
Carbondale, IL

Average rainfall days in April - Carbondale, IL
  • Average rainfall days in April: 15.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in April
Carbondale, IL

Average snowfall in April - Carbondale, IL
  • Average snowfall in April: 0.08"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Carbondale, IL

Average snowfall days in April - Carbondale, IL
  • Average snowfall days in April: 0.4 days

The months with the highest number of snowfall days are January and February (4.8 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
Carbondale, IL

Average daylight in April / Average sunshine in April - Carbondale, IL
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in April: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in April
Carbondale, IL

Average sunshine days in April - Carbondale, IL
  • Average sunshine days in April: 12.3 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in April
Carbondale, IL

Average UV index in April - Carbondale, IL
  • Average UV index in April: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in April
Carbondale, IL

Average cloud cover in April - Carbondale, IL
  • Average cloud cover in April: 41

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).

Average visibility in April
Carbondale, IL

Average visibility in April - Carbondale, 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).

Carbondale, Illinois, USA

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