April weather forecast
Casey, IL

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Weather in April

April is an enjoyable spring month in Casey, Illinois, with an average temperature fluctuating between 62.8°F (17.1°C) and 46.4°F (8°C).

Temperature

With the onset of April, Casey's weather sees a temperature rise, transitioning from a cool 51.4°F (10.8°C) in March to an enjoyable 62.8°F (17.1°C). April brings Casey a consistent average low-temperature of 46.4°F (8°C).

Humidity

In April, the average relative humidity is 77%.

Rainfall

The month with the most rainfall is April, when the rain falls for 12.6 days and typically aggregates up to 1.54" (39mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Casey aggregates 0.04" (1mm) of snow. In Casey, during the entire year, snow falls for 18.9 days and aggregates up to 1.73" (44mm) of snow.

Daylight

The average length of the day in April is 13h and 16min.
On the first day of April, sunrise is at 6:34 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:44 pm CDT.

Sunshine

The average sunshine in April is 8.1h.

UV index

In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

What is the temperature in April in Casey?

During April, Casey experiences an average high-temperature of 62.8°F (17.1°C) and a low-temperature of 46.4°F (8°C).

What is the average humidity in April?

In April, the average relative humidity is 77%.

What is the wettest month?

The month with the most rainfall is April, when the rain falls for 12.6 days and typically aggregates up to 1.54" (39mm) of precipitation.

How much does it rain in April?

In Casey, during April, the rain falls for 12.6 days and regularly aggregates up to 1.54" (39mm) of precipitation.

What is the last month it snows?

April is the last month it regularly snows. During 0.3 snowfall days, in April, Casey aggregates 0.04" (1mm) of snow.

How many hours of daylight does Casey have in April?

In April, the average day length is 13h and 16min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:34 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:44 pm CDT.

How many hours of sunshine does Casey have in April?

The average sunshine duration in April is 8.1h.

What is the UV index reading in April in Casey?

In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Casey, IL

Average temperature in April - Casey, IL
  • Average high temperature in April: 62.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in April: 46.4°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 (22.6°F).

Average pressure in April
Casey, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Casey, IL

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

The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

Average humidity in April
Casey, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in April
Casey, IL

Average rainfall in April - Casey, IL
  • Average rainfall in April: 1.54"

The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in April
Casey, IL

Average rainfall days in April - Casey, IL
  • Average rainfall days in April: 12.6 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).

Average snowfall in April
Casey, IL

Average snowfall in April - Casey, IL
  • Average snowfall in April: 0.04"

The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Casey, IL

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

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in April /
Average sunshine in April
Casey, IL

Average daylight in April / Average sunshine in April - Casey, IL
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in April
Casey, IL

Average sunshine days in April - Casey, IL
  • Average sunshine days in April: 14.8 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).

Average UV index in April
Casey, IL

Average UV index in April - Casey, IL
  • Average UV index in April: 4

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
Casey, IL

Average cloud cover in April - Casey, IL
  • Average cloud cover in April: 44

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in April
Casey, IL

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

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

Casey, Illinois, USA

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