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 arrival of April brings a change in Carterville's weather, with average high-temperatures moving from March's cool 55.2°F (12.9°C) to a refreshing 66.4°F (19.1°C). April brings Carterville a consistent average low-temperature of 48.7°F (9.3°C).Humidity
In Carterville, Illinois, the average relative humidity in April is 77%.Rainfall
April is the month with the most rainfall. Rain falls for 13.8 days and accumulates 3.11" (79mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Carterville. April is the last month it regularly snows in Carterville. During 0.5 snowfall days, in April, Carterville aggregates 0.08" (2mm) of snow. Throughout the year, there are 14.5 snowfall days, and 4.13" (105mm) of snow is accumulated.Daylight
In April, the average length of the day in Carterville is 13h and 12min.On the first day of April in Carterville, sunrise is at 6:40 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:46 pm CDT.
Sunshine
In Carterville, the average sunshine in April is 8.6h.UV index
In Carterville, Illinois, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in April translates into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Carterville in April?
What is the average humidity in April in Carterville?
What is the rainiest month in Carterville?
How much does it rain in Carterville in April?
What is the last month it snows in Carterville?
What is the average length of the day in April in Carterville?
What time are sunrise and sunset in April in Carterville?
How long on average sun shines in April in Carterville?
What is the UV index intensity in April in Carterville?
Average temperature in April
Carterville, IL
- Average high temperature in April: 66.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in April
Carterville, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Carterville, IL
- Average wind speed in April: 9.1mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in April
Carterville, IL
- Average humidity in April: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Carterville, IL
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in April
Carterville, IL
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in April
Carterville, IL
- Average snowfall in April: 0.08"
The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Carterville, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is February (4.3 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
Carterville, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in April
Carterville, IL
- Average sunshine days in April: 13.7 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in April
Carterville, IL
- Average UV index in April: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Carterville, IL
- Average cloud cover in April: 41
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility in April
Carterville, 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).
Carterville, Illinois, USA
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