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
Wilmington experiences a temperature shift with the start of April, with average high-temperatures moving from a frosty 47.1°F (8.4°C) in March to a mild 58.8°F (14.9°C). During April, Wilmington experiences a consistent low-temperature average of 42.4°F (5.8°C).Humidity
The average relative humidity in April is 74%.Rainfall
In Wilmington, Illinois, during April, the rain falls for 17.3 days and regularly aggregates up to 3.74" (95mm) of precipitation. Throughout the year, in Wilmington, there are 160.4 rainfall days, and 33.5" (851mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Wilmington. During 1.8 snowfall days, in April, Wilmington aggregates 1.69" (43mm) of snow. In Wilmington, during the entire year, snow falls for 38.7 days and aggregates up to 15.39" (391mm) of snow.Daylight
In Wilmington, Illinois, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:50 am and sunset at 7:49 pm CDT.
Sunshine
The average sunshine in April in Wilmington is 7.8h.UV index
In Wilmington, Illinois, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: During April, 4 as the daily maximum UV index converts into the following advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What is the usual temperature for Wilmington in April?
What is the average humidity in April in Wilmington?
How many days does it rain in April in Wilmington?
What is the last month it snows in Wilmington?
How many hours of daylight does Wilmington have in April?
What time are sunrise and sunset in April in Wilmington?
How many hours of sunshine does Wilmington have in April?
How high is the UV index in April in Wilmington?
Average temperature in April
Wilmington, IL
- Average high temperature in April: 58.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in April
Wilmington, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Wilmington, IL
- Average wind speed in April: 9.9mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in April
Wilmington, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Wilmington, IL
- Average rainfall in April: 3.74"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").
Average rainfall days in April
Wilmington, IL
- Average rainfall days in April: 17.3 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in April
Wilmington, IL
- Average snowfall in April: 1.69"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Wilmington, IL
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (10.6 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
Wilmington, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Wilmington, IL
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in April
Wilmington, IL
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Wilmington, IL
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in April
Wilmington, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are February, July and August (5mi).
Wilmington, Illinois, USA
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