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
In Marietta, the average high-temperature in April rises, from a chilly 49.6°F (9.8°C) in March, to a refreshing 61.3°F (16.3°C). Throughout April, an average low-temperature of 44.2°F (6.8°C) is expected.Humidity
In Marietta, the average relative humidity in April is 74%.Rainfall
In Marietta, during April, the rain falls for 13.7 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 131.7 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Marietta. During 1 snowfall days, in April, Marietta aggregates 0.43" (11mm) of snow. In Marietta, during the entire year, snow falls for 27.4 days and aggregates up to 9.21" (234mm) of snow.Daylight
In April, the average length of the day in Marietta is 13h and 19min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:26 pm. On the last day of April, in Marietta, sunrise is at 6:00 am and sunset at 7:56 pm CDT.
Sunshine
In April, the average sunshine is 8.1h.UV index
In Marietta, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In April, the UV index of 4 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Marietta?
What is the average humidity in April in Marietta?
How many days does it rain in April in Marietta?
What is the last month it snows in Marietta?
What is the average length of the day in April in Marietta?
When is the sunrise / sunset in April in Marietta?
How many hours of sunshine does Marietta have in April?
How high is the UV index in April in Marietta?
Average temperature in April
Marietta, IL
- Average high temperature in April: 61.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 44.2°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in April
Marietta, IL
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Marietta, IL
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in April
Marietta, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Marietta, IL
- Average rainfall in April: 2.6"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in April
Marietta, IL
- Average rainfall days in April: 13.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in April
Marietta, IL
- Average snowfall in April: 0.43"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Marietta, IL
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is January (9.4 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
Marietta, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
Marietta, IL
- Average sunshine days in April: 14.6 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in April
Marietta, 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
Marietta, IL
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in April
Marietta, 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).
Marietta, Illinois, USA
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