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
A shift in the average high-temperature is noticeable in April, changing from a cool 52.2°F (11.2°C) in March to a comfortable 63.9°F (17.7°C). April generally records an average low-temperature of 46.4°F (8°C).Humidity
The average relative humidity in April in Chesterfield is 76%.Rainfall
In Chesterfield, during April, the rain falls for 14.6 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Chesterfield, Illinois, during the entire year, the rain falls for 138.2 days and collects up to 23.31" (592mm) of precipitation.Snowfall
In Chesterfield, snow does not fall in April through October.Daylight
In April, the average length of the day in Chesterfield is 13h and 16min.On the first day of April in Chesterfield, sunrise is at 6:43 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:52 pm CDT.
Sunshine
In April, the average sunshine in Chesterfield is 8.4h.UV index
In April, the average daily maximum UV index in Chesterfield is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 4 during April translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What is the average April temperature in Chesterfield?
What is the average humidity in April in Chesterfield?
How much does it rain in Chesterfield in April?
When it does not snow in Chesterfield?
Does it snow in Chesterfield in April?
How many hours of daylight does Chesterfield have in April?
When is the sunrise / sunset in April in Chesterfield?
How many hours of sunshine does Chesterfield have in April?
What is the UV index reading in April in Chesterfield?
Average temperature in April
Chesterfield, IL
- Average high temperature in April: 63.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in April: 46.4°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in April
Chesterfield, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Chesterfield, IL
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in April
Chesterfield, IL
- Average humidity in April: 76%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Chesterfield, IL
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is June (3.07").
The driest months (with the least rainfall) are January and February (1.22").
Average rainfall days in April
Chesterfield, IL
- Average rainfall days in April: 14.6 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Chesterfield, IL
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Chesterfield, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (6.3 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
Chesterfield, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Chesterfield, IL
- Average sunshine days in April: 14 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in April
Chesterfield, 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
Chesterfield, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in April
Chesterfield, 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).
Chesterfield, Illinois, USA
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