April weather forecast
Seward, IL

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Weather in April

April is a mild spring month in Seward, Illinois, with an average temperature varying between 39.7°F (4.3°C) and 56.3°F (13.5°C).

Temperature

Seward sees an increase in the average high-temperature with the arrival of April, moving from March's frosty 44.2°F (6.8°C) to a moderate 56.3°F (13.5°C). Throughout April, Seward witnesses a nighttime temperature average of 39.7°F (4.3°C).

Humidity

April and October, with an average relative humidity of 75%, are the least humid months in Seward.

Rainfall

In April, in Seward, the rain falls for 11.1 days. Throughout April, 0.91" (23mm) of precipitation is accumulated. In Seward, during the entire year, the rain falls for 100.6 days and collects up to 7.99" (203mm) of precipitation.

Snowfall

Months with snowfall in Seward, Illinois, are January through April, October through December. April is the last month it regularly snows in Seward. During 1.1 snowfall days, in April, Seward aggregates 0.12" (3mm) of snow. Throughout the year, in Seward, there are 29.5 snowfall days, and 3.66" (93mm) of snow is accumulated.

Daylight

In Seward, the average length of the day in April is 13h and 23min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:23 pm. On the last day of April, in Seward, Illinois, sunrise is at 5:52 am and sunset at 7:56 pm CDT.

Sunshine

The average sunshine in April in Seward is 7.5h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 3 in April translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Seward?

The high-temperature in Seward, Illinois, during April is 56.3°F (13.5°C) and the low-temperature is 39.7°F (4.3°C).

What is the least humid month in Seward?

April and October, with an average relative humidity of 75%, are the least humid months.

What is the average humidity in April in Seward?

In April, the average relative humidity is 75%.

How much does it rain in Seward in April?

In Seward, Illinois, in April, during 11.1 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

What is the last month it snows in Seward?

April is the last month it regularly snows. During 1.1 snowfall days, in April, Seward aggregates 0.12" (3mm) of snow.

What is the average length of the day in April in Seward?

The average day length in April in Seward is 13h and 23min.

What time are sunrise and sunset in April in Seward?

On the first day of April, sunrise is at 6:38 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:56 pm CDT.

How many hours of sunshine does Seward have in April?

The average sunshine duration in April in Seward, Illinois, is 7.5h.

How high is the UV index in April in Seward?

In Seward, Illinois, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health risk 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
Seward, IL

Average temperature in April - Seward, IL
  • Average high temperature in April: 56.3°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in April: 39.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14°F).

Average pressure in April
Seward, IL

Average pressure in April - Seward, IL
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Seward, IL

Average wind speed in April - Seward, IL
  • Average wind speed in April: 10.2mph

The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in April
Seward, IL

Average humidity in April - Seward, IL
  • Average humidity in April: 75%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in April
Seward, IL

Average rainfall in April - Seward, IL
  • Average rainfall in April: 0.91"

The wettest month (with the highest rainfall) is May (1.18").
The driest months (with the least rainfall) are January and February (0.35").

Average rainfall days in April
Seward, IL

Average rainfall days in April - Seward, IL
  • Average rainfall days in April: 11.1 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in April
Seward, IL

Average snowfall in April - Seward, IL
  • Average snowfall in April: 0.12"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Seward, IL

Average snowfall days in April - Seward, IL
  • Average snowfall days in April: 1.1 days

The month with the highest number of snowfall days is January (8.1 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
Seward, IL

Average daylight in April / Average sunshine in April - Seward, IL
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in April: 7h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in April
Seward, IL

Average sunshine days in April - Seward, IL
  • Average sunshine days in April: 16.8 days

The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (12.8 days).

Average UV index in April
Seward, IL

Average UV index in April - Seward, IL
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in April
Seward, IL

Average cloud cover in April - Seward, IL
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in April
Seward, IL

Average visibility in April - Seward, IL
  • Average visibility in April: 6mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

Seward, Illinois, USA

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