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 an increase in the average high-temperature, progressing from a frosty 48.6°F (9.2°C) in March to a refreshing 60.4°F (15.8°C). In April, Gillum encounters an average low-temperature of 44.2°F (6.8°C) during the night.Humidity
The average relative humidity in April in Gillum, Illinois, is 74%.Rainfall
In Gillum, in April, during 17.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, there are 163.1 rainfall days, and 33.62" (854mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.1 snowfall days, in April, Gillum aggregates 0.79" (20mm) of snow. In Gillum, during the entire year, snow falls for 40.7 days and aggregates up to 17.01" (432mm) of snow.Daylight
In April, the average length of the day in Gillum is 13h and 19min.On the first day of April in Gillum, sunrise is at 6:37 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:50 pm CDT.
Sunshine
In April, the average sunshine in Gillum is 7.7h.UV index
The average daily maximum UV index in April in Gillum is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 4 in April interprets into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What are April temperatures in Gillum?
What is the average humidity in April in Gillum?
How many days does it rain in April in Gillum?
What is the last month it snows in Gillum?
What is the average length of the day in April in Gillum?
When is the sunrise / sunset in April in Gillum?
How many hours of sunshine does Gillum have in April?
What is the UV index reading in April in Gillum?
Average temperature in April
Gillum, IL
- Average high temperature in April: 60.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 44.2°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 (18.9°F).
Average pressure in April
Gillum, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Gillum, IL
- Average wind speed in April: 10.9mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in April
Gillum, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Gillum, IL
- Average rainfall in April: 3.7"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is December (1.93").
Average rainfall days in April
Gillum, IL
- Average rainfall days in April: 17.4 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in April
Gillum, IL
- Average snowfall in April: 0.79"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Gillum, IL
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (12.8 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
Gillum, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Gillum, IL
- Average sunshine days in April: 10.6 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in April
Gillum, IL
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in April
Gillum, 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
Gillum, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Gillum, Illinois, USA
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