April weather forecast
Caledonia, IL

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Weather in April

April is a moderate spring month in Caledonia, Illinois, with an average temperature ranging between min 39°F (3.9°C) and max 55.6°F (13.1°C).

Temperature

April brings a rise in Caledonia's average high-temperature, moving from a frosty 43.9°F (6.6°C) in March to a refreshing 55.6°F (13.1°C). An average nighttime temperature of 39°F (3.9°C) is witnessed in Caledonia, Illinois throughout April.

Humidity

In April, the average relative humidity is 76%.

Rainfall

In Caledonia, during April, the rain falls for 12.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 123.8 rainfall days, and 14.49" (368mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.3 snowfall days, in April, Caledonia aggregates 0.51" (13mm) of snow. Throughout the year, in Caledonia, there are 38.3 snowfall days, and 6.57" (167mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 24min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:21 pm. On the last day of April, in Caledonia, sunrise is at 5:50 am and sunset at 7:54 pm CDT.

Sunshine

The average sunshine in April in Caledonia is 7.5h.

UV index

In Caledonia, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 3 in April translates into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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 Caledonia?

In Caledonia, 55.6°F (13.1°C) is the average high-temperature and 39°F (3.9°C) is the average low-temperature during April.

What is the average humidity in April in Caledonia?

The average relative humidity in April in Caledonia is 76%.

How much does it rain in Caledonia in April?

In Caledonia, in April, during 12.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

What is the last month it snows in Caledonia?

April is the last month it regularly snows in Caledonia. During 1.3 snowfall days, in April, Caledonia aggregates 0.51" (13mm) of snow.

How many hours of daylight does Caledonia have in April?

The average day length in April in Caledonia is 13h and 24min.

When is the sunrise / sunset in April in Caledonia?

In April, on the first day of the month, sunrise is at 6:36 am and sunset at 7:21 pm. On the last day of the month, in Caledonia, Illinois, sunrise is at 5:50 am and sunset at 7:54 pm CDT.

How long on average sun shines in April in Caledonia?

The average sunshine duration in April in Caledonia, Illinois, is 7.5h.

How high is the UV index in April in Caledonia?

In April, the average daily maximum UV index in Caledonia is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Caledonia, IL

Average temperature in April - Caledonia, IL
  • Average high temperature in April: 55.6°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in April: 39°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in April
Caledonia, IL

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

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Caledonia, IL

Average wind speed in April - Caledonia, IL
  • Average wind speed in April: 10.1mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in April
Caledonia, IL

Average humidity in April - Caledonia, IL
  • Average humidity in April: 76%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).

Average rainfall in April
Caledonia, IL

Average rainfall in April - Caledonia, IL
  • Average rainfall in April: 1.38"

The wettest month (with the highest rainfall) is June (2.2").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in April
Caledonia, IL

Average rainfall days in April - Caledonia, IL
  • Average rainfall days in April: 12.9 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in April
Caledonia, IL

Average snowfall in April - Caledonia, IL
  • Average snowfall in April: 0.51"

The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Caledonia, IL

Average snowfall days in April - Caledonia, 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
Caledonia, IL

Average daylight in April / Average sunshine in April - Caledonia, 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 6min).

  • Average sunshine in April: 7h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).

Average sunshine days in April
Caledonia, IL

Average sunshine days in April - Caledonia, IL
  • Average sunshine days in April: 13.6 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in April
Caledonia, IL

Average UV index in April - Caledonia, IL
  • Average UV index in April: 3

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

Average cloud cover in April
Caledonia, IL

Average cloud cover in April - Caledonia, IL
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in April
Caledonia, IL

Average visibility in April - Caledonia, IL
  • Average visibility in April: 6mi

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

Caledonia, Illinois, USA

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