April weather forecast
Cairo, IL

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Weather in April

Come April, the evidence of winter in Cairo fades as the weather warms up further. Temperatures spike compared to the previous three months, promoting more vigorous blooming in the local flora. One significant change is the disappearance of snowfall, a clear sign that winter's cold grasp has been completely left behind. As days grow significantly longer and the sun shines brighter, Calcites spend more time outdoors enjoying recreational activities.

Temperature

The rise of average high-temperatures is seen in April, with an increase from a moderate 56.8°F (13.8°C) in March to an enjoyable 67.6°F (19.8°C). Nighttime temperatures in April average to a fresh 50.2°F (10.1°C).

Humidity

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

Rainfall

The month with the most rainfall is April, when the rain falls for 15.2 days and typically aggregates up to 4.21" (107mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. April is the last month it regularly snows in Cairo. During 0.3 snowfall days, in April, Cairo aggregates 0.08" (2mm) of snow. In Cairo, during the entire year, snow falls for 11.5 days and aggregates up to 4.88" (124mm) of snow.

Daylight

The average length of the day in April is 13h and 10min.
On the first day of April in Cairo, sunrise is at 6:41 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:45 pm CDT.

Sunshine

In April, the average sunshine in Cairo is 8.8h.

UV index

The average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 5 during April leads to these advisories:
Take precautions - Protection against sun damage is advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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 Cairo?

The average high-temperature and low-temperature in Cairo, Illinois, during April are 67.6°F (19.8°C) and 50.2°F (10.1°C) respectively.

What is the average humidity in April in Cairo?

The average relative humidity in April in Cairo, Illinois, is 77%.

What is the rainiest month in Cairo?

April is the month with the most rainfall in Cairo. Rain falls for 15.2 days and accumulates 4.21" (107mm) of precipitation.

How much does it rain in Cairo in April?

In Cairo, in April, it is raining for 15.2 days, with typically 4.21" (107mm) of accumulated precipitation.

What is the last month it snows in Cairo?

April is the last month it regularly snows. During 0.3 snowfall days, in April, Cairo aggregates 0.08" (2mm) of snow.

What is the average length of the day in April in Cairo?

In April, the average day length in Cairo, Illinois, is 13h and 10min.

When is the sunrise / sunset in April in Cairo?

On the first day of April in Cairo, sunrise is at 6:41 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:45 pm CDT.

How long on average sun shines in April in Cairo?

In Cairo, Illinois, the average sunshine duration in April is 8.8h.

What is the UV index reading in April in Cairo?

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

Average temperature in April - Cairo, IL
  • Average high temperature in April: 67.6°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in April: 50.2°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in April
Cairo, IL

Average pressure in April - Cairo, IL
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in April
Cairo, IL

Average wind speed in April - Cairo, IL
  • Average wind speed in April: 9mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in April
Cairo, IL

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

The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in April
Cairo, IL

Average rainfall in April - Cairo, IL
  • Average rainfall in April: 4.21"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in April
Cairo, IL

Average rainfall days in April - Cairo, IL
  • Average rainfall days in April: 15.2 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in April
Cairo, IL

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

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Cairo, IL

Average snowfall days in April - Cairo, IL
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is February (3.8 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
Cairo, IL

Average daylight in April / Average sunshine in April - Cairo, 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 42min).

  • Average sunshine in April: 8h and 5min

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

Average sunshine days in April
Cairo, IL

Average sunshine days in April - Cairo, IL
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in April
Cairo, IL

Average UV index in April - Cairo, 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 and December (UV index 2).

Average cloud cover in April
Cairo, IL

Average cloud cover in April - Cairo, IL
  • Average cloud cover in April: 40

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in April
Cairo, IL

Average visibility in April - Cairo, 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).

Cairo, Illinois, USA

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