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 transition from March to April brings a temperature rise, with average high-temperatures increasing from a chilly 46.2°F (7.9°C) to a moderate 58.1°F (14.5°C). The low-temperature in Crystal Lawns averages to a cold 41.7°F (5.4°C) during the nights of April.Humidity
In April, the average relative humidity is 75%.Rainfall
In Crystal Lawns, Illinois, in April, during 16.3 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. In Crystal Lawns, during the entire year, the rain falls for 153.6 days and collects up to 32.72" (831mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Crystal Lawns, Illinois. April is the last month it regularly snows in Crystal Lawns. During 1 snowfall days, in April, Crystal Lawns aggregates 1.57" (40mm) of snow. Throughout the year, in Crystal Lawns, there are 38.2 snowfall days, and 14.61" (371mm) of snow is accumulated.Daylight
In April, the average length of the day in Crystal Lawns is 13h and 22min.On the first day of April in Crystal Lawns, sunrise is at 6:34 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:49 pm CDT.
Sunshine
In April, the average sunshine in Crystal Lawns is 7.5h.UV index
In Crystal Lawns, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 3 in April interprets into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What is the temperature in April in Crystal Lawns?
What is the average humidity in April in Crystal Lawns?
How much does it rain in Crystal Lawns in April?
What is the last month it snows in Crystal Lawns?
What is the average length of the day in April in Crystal Lawns?
When are sunrise and sunset in April in Crystal Lawns?
How long on average sun shines in April in Crystal Lawns?
How high is the UV index in April in Crystal Lawns?
Average temperature in April
Crystal Lawns, IL
- Average high temperature in April: 58.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in April
Crystal Lawns, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Crystal Lawns, IL
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in April
Crystal Lawns, 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
Crystal Lawns, IL
- Average rainfall in April: 3.62"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in April
Crystal Lawns, IL
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in April
Crystal Lawns, IL
- Average snowfall in April: 1.57"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Crystal Lawns, IL
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is January (11.9 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
Crystal Lawns, 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Crystal Lawns, IL
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in April
Crystal Lawns, IL
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Crystal Lawns, IL
- Average cloud cover in April: 50
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 34).
Average visibility in April
Crystal Lawns, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Crystal Lawns, Illinois, USA
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