April weather forecastGlen Ellyn, IL
April
Weather in April
April in Glen Ellyn, Illinois, is a mild spring month, with an average temperature varying between 40.3°F (4.6°C) and 56.3°F (13.5°C).Temperature
As Glen Ellyn, Illinois, transitions into April, a rise in the average high-temperature is observed, moving from a frosty 45°F (7.2°C) in March to a refreshing 56.3°F (13.5°C). Glen Ellyn's average low-temperature during April nights is observed to be an icy 40.3°F (4.6°C).Humidity
In Glen Ellyn, Illinois, the average relative humidity in April is 75%.Rainfall
In Glen Ellyn, during April, the rain falls for 17 days and regularly aggregates up to 3.78" (96mm) of precipitation. In Glen Ellyn, during the entire year, the rain falls for 164.3 days and collects up to 33.78" (858mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Glen Ellyn, in April, during 1.8 snowfall days, 2.6" (66mm) of snow is typically accumulated. In Glen Ellyn, during the entire year, snow falls for 47 days and aggregates up to 20.2" (513mm) of snow.Daylight
The average length of the day in April in Glen Ellyn is 13h and 23min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:48 am and sunset at 7:50 pm CDT.
Sunshine
In April, the average sunshine in Glen Ellyn is 7.6h.UV index
In April, the average daily maximum UV index in Glen Ellyn is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 suggests these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Glen Ellyn, IL
- Average high temperature in April: 56.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in April: 40.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in April
Glen Ellyn, 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
Glen Ellyn, IL
- Average wind speed in April: 9.6mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in April
Glen Ellyn, IL
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Glen Ellyn, IL
- Average rainfall in April: 3.78"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are November and December (1.65").
Average rainfall days in April
Glen Ellyn, IL
- Average rainfall days in April: 17 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in April
Glen Ellyn, IL
- Average snowfall in April: 2.6"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Glen Ellyn, IL
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Glen Ellyn, IL
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Glen Ellyn, IL
- Average sunshine days in April: 9.4 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in April
Glen Ellyn, 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 January (UV index 1).
Average cloud cover in April
Glen Ellyn, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in April
Glen Ellyn, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
