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
Glendale Heights sees an increase in average high-temperatures during April, moving from a frosty 44.8°F (7.1°C) in March to a mild 56.1°F (13.4°C). Nighttime temperatures in April average to a cold 40.3°F (4.6°C).Humidity
In Glendale Heights, the average relative humidity in April is 75%.Rainfall
In April, in Glendale Heights, the rain falls for 12.3 days. Throughout April, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 119.1 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Glendale Heights. April is the last month it regularly snows. During 1.2 snowfall days, in April, Glendale Heights aggregates 0.71" (18mm) of snow. In Glendale Heights, Illinois, during the entire year, snow falls for 34.4 days and aggregates up to 5.2" (132mm) of snow.Daylight
In Glendale Heights, the average length of the day in April is 13h and 23min.On the first day of April, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 7:50 pm CDT.
Sunshine
The average sunshine in April is 7.6h.UV index
In Glendale Heights, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 3 in April leads to these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Boost your sun resistance with garments that are densely woven yet spacious. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What are April temperatures in Glendale Heights?
What is the average humidity in April in Glendale Heights?
How much does it rain in Glendale Heights in April?
What is the last month it snows in Glendale Heights?
What is the average length of the day in April in Glendale Heights?
When is the sunrise / sunset in April in Glendale Heights?
How long on average sun shines in April in Glendale Heights?
What is the UV index reading in April in Glendale Heights?
Average temperature in April
Glendale Heights, IL
- Average high temperature in April: 56.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in April: 40.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in April
Glendale 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
Glendale Heights, 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 (6.1mph).
Average humidity in April
Glendale Heights, 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 (74%).
Average rainfall in April
Glendale Heights, IL
- Average rainfall in April: 1.1"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February, November and December (0.51").
Average rainfall days in April
Glendale Heights, IL
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in April
Glendale Heights, IL
- Average snowfall in April: 0.71"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Glendale Heights, IL
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Glendale Heights, IL
- Average daylight in April: 13h and 2min
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 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Glendale Heights, IL
- Average sunshine days in April: 14.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in April
Glendale Heights, IL
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Glendale Heights, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in April
Glendale Heights, 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).
Glendale Heights, Illinois, USA
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