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 frosty 48.7°F (9.3°C) in March to a refreshing 60.4°F (15.8°C). The temperature dips to an average of 44.2°F (6.8°C) during April nights.Humidity
The average relative humidity in April in Shirley is 74%.Rainfall
In April, in Shirley, the rain falls for 14.6 days. Throughout April, 2.4" (61mm) of precipitation is accumulated. In Shirley, during the entire year, the rain falls for 140.6 days and collects up to 22.44" (570mm) of precipitation.Snowfall
Months with snowfall in Shirley are January through April, October through December. April is the last month it regularly snows. During 1 snowfall days, in April, Shirley aggregates 0.75" (19mm) of snow. Throughout the year, in Shirley, there are 35.4 snowfall days, and 9.45" (240mm) of snow is accumulated.Daylight
In April, the average length of the day in Shirley is 13h and 19min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:21 pm. On the last day of April, sunrise is at 5:55 am and sunset at 7:51 pm CDT.
Sunshine
In April, the average sunshine is 7.6h.UV index
In Shirley, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In April, an average UV index of 4 transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Shirley?
What is the average humidity in April in Shirley?
How much does it rain in Shirley in April?
What is the last month it snows in Shirley?
How many hours of daylight does Shirley have in April?
When are sunrise and sunset in April in Shirley?
How many hours of sunshine does Shirley have in April?
How high is the UV index in April in Shirley?
Average temperature in April
Shirley, 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 (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
Shirley, 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
Shirley, IL
- Average wind speed in April: 11mph
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
Shirley, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Shirley, IL
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in April
Shirley, IL
- Average rainfall days in April: 14.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in April
Shirley, IL
- Average snowfall in April: 0.75"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Shirley, IL
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is January (11.5 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
Shirley, 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 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Shirley, IL
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in April
Shirley, 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, November and December (UV index 2).
Average cloud cover in April
Shirley, IL
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in April
Shirley, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Shirley, Illinois, USA
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