April weather forecast
Marissa, IL

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Weather in April

April is a comfortable spring month in Marissa, Illinois, with an average temperature varying between 65.7°F (18.7°C) and 47.8°F (8.8°C).

Temperature

April's arrival coincides with a rise in the average high-temperature, moving from March's fresh 54.5°F (12.5°C) to a refreshing 65.7°F (18.7°C). Marissa encounters an average low-temperature of 47.8°F (8.8°C) during April nights.

Humidity

The average relative humidity in April is 77%.

Rainfall

In Marissa, during April, the rain falls for 12.6 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 129.6 rainfall days, and 19.09" (485mm) of precipitation is accumulated.

Snowfall

April through August are months without snowfall in Marissa.

Daylight

The average length of the day in April is 13h and 13min.
On the first day of April in Marissa, sunrise is at 6:42 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:49 pm CDT.

Sunshine

The average sunshine in April is 8.6h.

UV index

In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: During April, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

During April, Marissa experiences an average high-temperature of 65.7°F (18.7°C) and a low-temperature of 47.8°F (8.8°C).

What is the average humidity in April?

The average relative humidity in April is 77%.

How many days does it rain in April?

In Marissa, during April, the rain falls for 12.6 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

April through August are months without snowfall.

Does it snow in April?

In April, it doesn't snow. March is the latest month when it typically snows.

What is the average length of the day in April?

The average day length in April is 13h and 13min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:42 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:49 pm CDT.

How long on average sun shines in April?

The average sunshine duration in April is 8.6h.

What is the UV index intensity in April?

In Marissa, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Marissa, IL

Average temperature in April - Marissa, IL
  • Average high temperature in April: 65.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in April: 47.8°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 (25.2°F).

Average pressure in April
Marissa, IL

Average pressure in April - Marissa, 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 (29.93"Hg).

Average wind speed in April
Marissa, IL

Average wind speed in April - Marissa, IL
  • Average wind speed in April: 9mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in April
Marissa, IL

Average humidity in April - Marissa, 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
Marissa, IL

Average rainfall in April - Marissa, IL
  • Average rainfall in April: 2.05"

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is February (0.83").

Average rainfall days in April
Marissa, IL

Average rainfall days in April - Marissa, IL
  • Average rainfall days in April: 12.6 days

The month with the highest number of rainy days is July (15.1 days).
The months with the least rainy days are January and December (6.5 days).

Average snowfall in April
Marissa, IL

Average snowfall in April - Marissa, IL
  • Average snowfall in April: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, May, June, July and August (0").

Average snowfall days in April
Marissa, IL

Average snowfall days in April - Marissa, IL
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in April /
Average sunshine in April
Marissa, IL

Average daylight in April / Average sunshine in April - Marissa, IL
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in April: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in April
Marissa, IL

Average sunshine days in April - Marissa, IL
  • Average sunshine days in April: 16 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13.7 days).

Average UV index in April
Marissa, IL

Average UV index in April - Marissa, IL
  • Average UV index in April: 4

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, November and December (UV index 2).

Average cloud cover in April
Marissa, IL

Average cloud cover in April - Marissa, IL
  • Average cloud cover in April: 41

The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 27).

Average visibility in April
Marissa, IL

Average visibility in April - Marissa, 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).

Marissa, Illinois, USA

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