April weather forecast
Manitowoc, WI

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A tree outside of the iconic stone old courthouse in Manitowoc City, Wisconsin
A tree outside of the iconic stone old courthouse in Manitowoc City, Wisconsin

Weather in April

April in Manitowoc signals the arrival of spring, replacing the dark, harsh winter with a season of growth and renewal. Embodying this change, the city experiences the highest average rainfall of the year at 1.02" (26mm). The temperature continues its rise from March, painting the city with a warmer palette. More daylight and longer hours of sunshine become increasingly prominent, contrasting the gloomy winter months. Manitowoc's landscape begins to rebirth, coloring the city with shades and hues of springtime.

Temperature

April brings a rise in Manitowoc's average high-temperature, moving from a wintry 36.9°F (2.7°C) in March to a chilly 46°F (7.8°C). Manitowoc records an average low-temperature of 36°F (2.2°C) throughout the month of April.

Humidity

In Manitowoc, Wisconsin, the average relative humidity in April is 78%.

Rainfall

In Manitowoc, in April, during 11.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Manitowoc, during the entire year, the rain falls for 108.5 days and collects up to 10.67" (271mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Manitowoc, during April, snow falls for 2.2 days and regularly aggregates up to 0.47" (12mm) of snow. In Manitowoc, during the entire year, snow falls for 43 days and aggregates up to 4.72" (120mm) of snow.

Ocean temperature

In Manitowoc, the average seawater temperature in April is 38.3°F (3.5°C).
Note: In the scenario of swimming, this is assessed as life-threatening and highly risky. The chilling water causes severe discomfort and induces instant hyperventilation. A specialized swimsuit is necessary to counter thermal damage.

Daylight

In April, the average length of the day is 13h and 29min.
On the first day of April in Manitowoc, sunrise is at 6:30 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:53 pm CDT.

Sunshine

In Manitowoc, Wisconsin, the average sunshine in April is 7.7h.

UV index

The average daily maximum UV index in April in Manitowoc is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 3 during April translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the average April temperature in Manitowoc?

In Manitowoc, 46°F (7.8°C) is the average high-temperature and 36°F (2.2°C) is the average low-temperature during April.

What is the average humidity in April in Manitowoc?

In April, the average relative humidity is 78%.

How many days does it rain in April in Manitowoc?

In Manitowoc, Wisconsin, in April, during 11.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

How many days does it snow in April in Manitowoc?

In Manitowoc, Wisconsin, during April, snow falls for 2.2 days and regularly aggregates up to 0.47" (12mm) of snow.

What is the water temperature in April in Manitowoc?

In Manitowoc, the average seawater temperature in April is 38.3°F (3.5°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Manitowoc have in April?

In Manitowoc, the average day length in April is 13h and 29min.

When are sunrise and sunset in April in Manitowoc?

On the first day of April in Manitowoc, Wisconsin, sunrise is at 6:30 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:53 pm CDT.

How many hours of sunshine does Manitowoc have in April?

In Manitowoc, the average sunshine duration in April is 7.7h.

What is the UV index reading in April in Manitowoc?

The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Manitowoc, WI

Average temperature in April - Manitowoc, WI
  • Average high temperature in April: 46°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in April: 36°F

The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in April
Manitowoc, WI

Average pressure in April - Manitowoc, WI
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in April
Manitowoc, WI

Average wind speed in April - Manitowoc, WI
  • Average wind speed in April: 11.6mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

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Average humidity in April
Manitowoc, WI

Average humidity in April - Manitowoc, WI
  • Average humidity in April: 78%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (77%).

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Average rainfall in April
Manitowoc, WI

Average rainfall in April - Manitowoc, WI
  • Average rainfall in April: 1.02"

The wettest month (with the highest rainfall) is July (1.34").
The driest months (with the least rainfall) are February and November (0.47").

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Average rainfall days in April
Manitowoc, WI

Average rainfall days in April - Manitowoc, WI
  • Average rainfall days in April: 11.9 days

The months with the highest number of rainy days are June and July (12.1 days).
The month with the least rainy days is January (3.9 days).

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Average snowfall in April
Manitowoc, WI

Average snowfall in April - Manitowoc, WI
  • Average snowfall in April: 0.47"

The month with the highest snowfall is January (1.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Manitowoc, WI

Average snowfall days in April - Manitowoc, WI
  • Average snowfall days in April: 2.2 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in April
Manitowoc, WI

Average sea temperature in April - Manitowoc, WI
  • Average sea temperature in April: 38.3°F

The best month for swimming (with the highest average sea temperature) is August (69.7°F).
The coldest month (with the lowest average sea temperature) is February (36.6°F).

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Average daylight in April /
Average sunshine in April
Manitowoc, WI

Average daylight in April / Average sunshine in April - Manitowoc, WI
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in April
Manitowoc, WI

Average sunshine days in April - Manitowoc, WI
  • Average sunshine days in April: 15.4 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is February (14.6 days).

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Average UV index in April
Manitowoc, WI

Average UV index in April - Manitowoc, WI
  • 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, February and December (UV index 1).

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Average cloud cover in April
Manitowoc, WI

Average cloud cover in April - Manitowoc, WI
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in April
Manitowoc, WI

Average visibility in April - Manitowoc, WI
  • 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).

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Manitowoc, Wisconsin, USA

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