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
As Greenville enters April, the average high-temperature increases from the a cool 53.1°F (11.7°C) of March to an enjoyable 63.9°F (17.7°C). Greenville's temperature lowers to a mean of 46.9°F (8.3°C) during the nights in April.Humidity
In April, the average relative humidity in Greenville is 77%.Rainfall
In Greenville, during April, the rain falls for 14.3 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 137.9 rainfall days, and 24.88" (632mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Greenville.Daylight
In Greenville, the average length of the day in April is 13h and 15min.On the first day of April in Greenville, sunrise is at 6:40 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 7:49 pm CDT.
Sunshine
In April, the average sunshine in Greenville is 8.3h.UV index
In Greenville, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 4 in April translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average April temperature in Greenville?
What is the average humidity in April in Greenville?
How many days does it rain in April in Greenville?
When it does not snow in Greenville?
Does it snow in Greenville in April?
How many hours of daylight does Greenville have in April?
When is the sunrise / sunset in April in Greenville?
How long on average sun shines in April in Greenville?
How high is the UV index in April in Greenville?
Average temperature in April
Greenville, IL
- Average high temperature in April: 63.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in April: 46.9°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in April
Greenville, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Greenville, IL
- Average wind speed in April: 9.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in April
Greenville, IL
- Average humidity in April: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Greenville, IL
- Average rainfall in April: 2.72"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in April
Greenville, IL
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Greenville, IL
- Average snowfall in April: 0"
The month with the highest snowfall is December (1.89").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Greenville, IL
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (5.8 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
Greenville, IL
- Average daylight in April: 13h and 1min
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 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in April
Greenville, IL
- Average sunshine days in April: 14.1 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in April
Greenville, 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
Greenville, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in April
Greenville, 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).
Greenville, Illinois, USA
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