Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
An escalation in the average high-temperature is seen with the onset of April, moving from a fresh 51.4°F (10.8°C) in March to a refreshing 62.8°F (17.1°C). In the month of April, the nighttime temperature dips to a steady average of 46.4°F (8°C).Humidity
In Casey, the average relative humidity in April is 77%.Rainfall
The month with the most rainfall in Casey 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 in Casey. 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
In Casey, the average length of the day in April is 13h and 16min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:16 pm. On the last day of April, sunrise is at 5:53 am and sunset at 7:44 pm CDT.
Sunshine
The average sunshine in April is 8.1h.UV index
The average daily maximum UV index in April in Casey is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In April, the maximum UV index of 4 transforms into these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are the temperatures in Casey in April?
What is the average humidity in April in Casey?
What is the rainiest month in Casey?
How much does it rain in Casey in April?
What is the last month it snows in Casey?
How many hours of daylight does Casey have in April?
When are sunrise and sunset in April in Casey?
How long on average sun shines in April in Casey?
What is the UV index reading in April in Casey?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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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