Milwaukee
Wisconsin, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Milwaukee, WI

A view of the modern Milwaukee City in Wisconsin, from Lake Michigan and over the pier
A view of the modern Milwaukee City in Wisconsin, from Lake Michigan and over the pier
April is a cool spring month in Milwaukee, Wisconsin, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 37.2°F (2.9°C).

Temperature

In Milwaukee, Wisconsin, the average high-temperature increases, from a wintry 42.4°F (5.8°C) in March, to a cool 53.8°F (12.1°C). In April, in Milwaukee, the average low-temperature is 37.2°F (2.9°C).

Humidity

Months with the lowest humidity in Milwaukee are April and May, with an average relative humidity of 68.5%.

Rainfall

In Milwaukee, it is raining for 12.1 days, with typically 3.6" (90.4mm) of accumulated precipitation. In Milwaukee, during the entire year, the rain falls for 126.7 days and collects up to 34.8" (882.9mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Milwaukee.

Ocean temperature

In Milwaukee, the average seawater temperature is 38.1°F (3.4°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

In Milwaukee, the average length of the day is 13.4h.

Sunshine

In Milwaukee, the average sunshine is 7.1h.

UV index

In Milwaukee, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the average person.
Note: In April, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Milwaukee?

The average high-temperature, in April, is 53.8°F (12.1°C), while the average low-temperature is 37.2°F (2.9°C).

What is the least humid month in Milwaukee?

April and May, with an average relative humidity of 68.5%, are the least humid months in Milwaukee, Wisconsin.

What is the average humidity in April in Milwaukee?

In April, the average relative humidity in Milwaukee, Wisconsin, is 68.5%.

How many days does it rain in April in Milwaukee?

In Milwaukee, Wisconsin, during April, the rain falls for 12.1 days and regularly aggregates up to 3.6" (90.4mm) of precipitation.

How many days does it snow in April in Milwaukee?

In Milwaukee, Wisconsin, during April, snow falls for 1.7 days and regularly aggregates up to 2" (50.8mm) of snow.

How cold is the water in April in Milwaukee?

In Milwaukee, in April, the average water temperature is 38.1°F (3.4°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.

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

In Milwaukee, the average length of the day in April is 13.4h.

How long on average sun shines in April in Milwaukee?

In Milwaukee, the average sunshine in April is 7.1h.

How high is the UV index in April in Milwaukee?

In Milwaukee, Wisconsin, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in April - Milwaukee, WI
  • Average high temperature in April: 53.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in April: 37.3°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average humidity in April - Milwaukee, WI
  • Average humidity in April: 68.5%

The month with the highest relative humidity is December (75.9%).
Months with the lowest relative humidity are April and May (68.5%).

Average rainfall in April - Milwaukee, WI
  • Average rainfall in April: 3.6"

The wettest month (with the highest rainfall) is August (4").
The driest month (with the lowest rainfall) is February (1.7").

Average rainfall days in April - Milwaukee, WI
  • Average rainfall days in April: 12.1 days

The month with the highest number of rainy days is April (12.1 days).
The month with the lowest number of rainy days is September (8.8 days).

Average snowfall in April - Milwaukee, WI
  • Average snowfall in April: 2"

The month with the highest snowfall is January (14.7").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in April - Milwaukee, WI
  • Average snowfall days in April: 1.7 days

The month with the highest number of snowfall days is January (9.8 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in April - Milwaukee, WI
  • Average sea temperature in April: 38.2°F

The best month for swimming (with the highest average sea temperature) is August (71.9°F).
The coldest month (with the lowest average sea temperature) is February (36°F).

Average daylight in April / Average sunshine in April - Milwaukee, WI
  • Average daylight in April: 13.4h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in April: 7.1h

The month with most sunshine is July (Average sunshine: 10.4h).
The month with least sunshine is December (Average sunshine: 3.4h).

Average UV index in April - Milwaukee, WI
  • Average UV index in April: 5

Months with the highest UV index are June, July and August (UV index 8).
Months with the lowest UV index are January and December (UV index 1).