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
The shift into April brings an increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a fresh 54.9°F (12.7°C). South Holland, during the month of April, experiences an average low-temperature of 41.4°F (5.2°C).Humidity
In April, the average relative humidity is 76%.Rainfall
In South Holland, in April, during 11.7 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 110.3 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in South Holland. During 1.4 snowfall days, in April, South Holland aggregates 0.47" (12mm) of snow. Throughout the year, there are 34.1 snowfall days, and 4.13" (105mm) of snow is accumulated.Daylight
In April, the average length of the day in South Holland is 13h and 22min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:16 pm. On the last day of April, in South Holland, sunrise is at 5:47 am and sunset at 7:47 pm CDT.
Sunshine
In April, the average sunshine is 7.6h.UV index
In South Holland, Illinois, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 3 suggests this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To cut down UV radiation exposure by about half, sport a wide-brim hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in South Holland in April?
What is the average humidity in April in South Holland?
How much does it rain in South Holland in April?
What is the last month it snows in South Holland?
How many hours of daylight does South Holland have in April?
What time are sunrise and sunset in April in South Holland?
How long on average sun shines in April in South Holland?
What is the UV index reading in April in South Holland?
Average temperature in April
South Holland, IL
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in April
South Holland, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
South Holland, IL
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in April
South Holland, IL
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
South Holland, IL
- Average rainfall in April: 1.1"
The wettest months (with the highest rainfall) are May and June (1.38").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in April
South Holland, IL
- Average rainfall days in April: 11.7 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in April
South Holland, IL
- Average snowfall in April: 0.47"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
South Holland, IL
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is January (9.3 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
South Holland, 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 12min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
South Holland, IL
- Average sunshine days in April: 15.2 days
The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in April
South Holland, IL
- Average UV index in April: 3
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
South Holland, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
South Holland, 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).
South Holland, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
