April weather forecastMattoon, WI
April
Weather in April
April in Mattoon, Wisconsin, is a cool spring month, with an average temperature varying between 50.5°F (10.3°C) and 33.8°F (1°C).Temperature
In Mattoon, the average high-temperature in April rises, from a wintry 38.5°F (3.6°C) in March, to a fresh 50.5°F (10.3°C). Nighttime temperatures consistently average an icy 33.8°F (1°C) during April.Humidity
April and May, with an average relative humidity of 75%, are the least humid months in Mattoon.Rainfall
In Mattoon, in April, during 13.3 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Mattoon, during the entire year, the rain falls for 126.9 days and collects up to 23.03" (585mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mattoon. In April, it is snowing for 4.9 days. Throughout April, 2.01" (51mm) of snow is accumulated. In Mattoon, during the entire year, snow falls for 62 days and aggregates up to 22.2" (564mm) of snow.Daylight
In Mattoon, the average length of the day in April is 13h and 32min.On the first day of April in Mattoon, Wisconsin, sunrise is at 6:35 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:01 pm CDT.
Sunshine
The average sunshine in April is 7.3h.UV index
In April, the average daily maximum UV index in Mattoon is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mattoon, WI
- Average high temperature in April: 50.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in April: 33.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).
Average pressure in April
Mattoon, WI
- Average pressure in April: 29.97"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Mattoon, WI
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in April
Mattoon, WI
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in April
Mattoon, WI
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January and February (1.02").
Average rainfall days in April
Mattoon, WI
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is May (15.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in April
Mattoon, WI
- Average snowfall in April: 2.01"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Mattoon, WI
- Average snowfall days in April: 4.9 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Mattoon, WI
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 7h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in April
Mattoon, WI
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in April
Mattoon, WI
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Mattoon, WI
- Average cloud cover in April: 51
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in April
Mattoon, WI
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
