April weather forecast
Manitowoc, WI

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, Wisconsin, is a chilly spring month, with average temperature ranging between min 36°F (2.2°C) and max 46°F (7.8°C).

Temperature

In Manitowoc, the average high-temperature in April rises, from a cold 36.9°F (2.7°C) in March, to a frosty 46°F (7.8°C). In April, the average low-temperature is 36°F (2.2°C).

Humidity

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

Rainfall

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

Snowfall

January through May, October through December are months with snowfall. In Manitowoc, in April, snow falls for 2.2 days, with typically accumulated 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 is 38.3°F (3.5°C).
Note: 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.

Daylight

The average length of the day in Manitowoc is 13.5h.

Sunshine

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

UV index

The average daily maximum UV index in Manitowoc is 3. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for average individuals.
Note: In April, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Manitowoc?

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

How much does it rain in Manitowoc in April?

In Manitowoc, in April, it is raining for 11.9 days, with typically 1.02" (26mm) of accumulated precipitation.

How many days does it snow in April in Manitowoc?

In April, in Manitowoc, Wisconsin, it is snowing for 2.2 days. Throughout April, 0.47" (12mm) of snow is accumulated.

What is the ocean temperature in April in Manitowoc?

In April, the average ocean temperature in Manitowoc, Wisconsin, 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 April, the average length of the day is 13.5h.

How many hours of sunshine does Manitowoc have in April?

The average sunshine in April in Manitowoc, Wisconsin, is 7.7h.

What is the UV index reading in April in Manitowoc?

In Manitowoc, Wisconsin, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in April
Manitowoc, WI

Average temperature in April - Manitowoc, WI
  • Average high temperature in April: 7.8°C

The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (-3.8°C).

  • Average low temperature in April: 2.2°C

The month with the highest average low temperature is August (17.2°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).

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Average pressure in April
Manitowoc, WI

Average pressure in April - Manitowoc, WI
  • Average pressure in April: 1014.7mbar

The month with the highest atmospheric pressure is March (1018.9mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

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Average wind speed in April
Manitowoc, WI

Average wind speed in April - Manitowoc, WI
  • Average wind speed in April: 18.7km/h

The windiest month (with the highest average wind speed) is January (20.9km/h).
The calmest month (with the lowest average wind speed) is July (13.5km/h).

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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%).
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: 26mm

The wettest month (with the highest rainfall) is July (34mm).
The driest months (with the least rainfall) are February and November (12mm).

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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

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: 12mm

The month with the highest snowfall is January (32mm).
Months with the least snowfall are June, July, August and September (0mm).

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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).
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: 3.5°C

The best month for swimming (with the highest average sea temperature) is August (20.9°C).
The coldest month (with the lowest average sea temperature) is February (2.6°C).

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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: 13.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in April: 7.7h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is January (Average sunshine: 3.5h).

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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).
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).
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: 9km

Months with the highest visibility are July, August, September, October and November (10km).
Months with the lowest visibility are January, February, March, April, May, June and December (9km).

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