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
April brings a temperature increase, with average high-temperatures moving from March's chilly 46°F (7.8°C) to a moderate 57.4°F (14.1°C). An average low-temperature of 42.1°F (5.6°C) is noted during the nights in April.Humidity
In South Chicago Heights, the average relative humidity in April is 75%.Rainfall
In South Chicago Heights, during April, the rain falls for 17.3 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, in South Chicago Heights, there are 167.4 rainfall days, and 35" (889mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in South Chicago Heights. During 2.1 snowfall days, in April, South Chicago Heights aggregates 2.17" (55mm) of snow. Throughout the year, there are 47.8 snowfall days, and 20.04" (509mm) of snow is accumulated.Daylight
The average length of the day in April in South Chicago Heights is 13h and 22min.On the first day of April in South Chicago Heights, sunrise is at 6:32 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:47 pm CDT.
Sunshine
In South Chicago Heights, the average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April in South Chicago Heights is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 3 in April translates into this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the average April temperature in South Chicago Heights?
What is the average humidity in April in South Chicago Heights?
How many days does it rain in April in South Chicago Heights?
What is the last month it snows in South Chicago Heights?
How many hours of daylight does South Chicago Heights have in April?
When is the sunrise / sunset in April in South Chicago Heights?
How many hours of sunshine does South Chicago Heights have in April?
What is the UV index reading in April in South Chicago Heights?
Average temperature in April
South Chicago Heights, IL
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in April: 42.1°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
South Chicago Heights, 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 Chicago Heights, IL
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in April
South Chicago Heights, IL
- Average humidity in April: 75%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
South Chicago Heights, IL
- Average rainfall in April: 3.86"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in April
South Chicago Heights, IL
- Average rainfall days in April: 17.3 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in April
South Chicago Heights, IL
- Average snowfall in April: 2.17"
The month with the highest snowfall is February (5.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
South Chicago Heights, IL
- Average snowfall days in April: 2.1 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
South Chicago Heights, 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: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
South Chicago Heights, IL
- Average sunshine days in April: 9.6 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in April
South Chicago Heights, IL
- Average UV index in April: 3
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
South Chicago Heights, 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 33).
Average visibility in April
South Chicago Heights, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
South Chicago Heights, Illinois, USA
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