April weather forecastCrystal Lawns, IL
April
Weather in April
April is a refreshing spring month in Crystal Lawns, Illinois, with an average temperature ranging between max 58.1°F (14.5°C) and min 41.7°F (5.4°C).Temperature
Crystal Lawns's weather shows a temperature rise with the arrival of April, moving from a frosty 46.2°F (7.9°C) in March to a refreshing 58.1°F (14.5°C). In the month of April, Crystal Lawns experiences an average low-temperature of 41.7°F (5.4°C).Humidity
In Crystal Lawns, the average relative humidity in April is 75%.Rainfall
In April, the rain falls for 16.3 days. Throughout April, 3.62" (92mm) of precipitation is 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
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 1 snowfall days, in April, Crystal Lawns aggregates 1.57" (40mm) of snow. In Crystal Lawns, during the entire year, snow falls for 38.2 days and aggregates up to 14.61" (371mm) of snow.Daylight
In Crystal Lawns, the average length of the day in April is 13h and 22min.On the first day of April, 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 is 7.5h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 in April translates into this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 24min
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 30min
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).
