May weather forecast
South Milwaukee, WI

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Weather in May

May, the last month of the spring in South Milwaukee, is a moderate month, with an average temperature varying between 47.8°F (8.8°C) and 59.2°F (15.1°C).

Temperature

May's arrival signals an increase in average high-temperatures, moving from April's chilly 48.7°F (9.3°C) to a mild 59.2°F (15.1°C). In the month of May, the nighttime temperature dips to a steady average of 47.8°F (8.8°C).

Humidity

The average relative humidity in May in South Milwaukee, Wisconsin, is 79%.

Rainfall

In May, in South Milwaukee, the rain falls for 14.3 days. Throughout May, 2.17" (55mm) of precipitation is accumulated. Throughout the year, in South Milwaukee, there are 131.9 rainfall days, and 18.54" (471mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in South Milwaukee.

Daylight

The average length of the day in May in South Milwaukee is 14h and 40min.
On the first day of May, sunrise is at 5:44 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:23 pm CDT.

Sunshine

In South Milwaukee, the average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May in South Milwaukee is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in May interprets into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What are the temperatures in South Milwaukee in May?

An average high-temperature, in May, in South Milwaukee, is 59.2°F (15.1°C) and the average low-temperature is 47.8°F (8.8°C).

What is the average humidity in May in South Milwaukee?

In South Milwaukee, Wisconsin, the average relative humidity in May is 79%.

How much does it rain in South Milwaukee in May?

In South Milwaukee, Wisconsin, in May, during 14.3 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow in South Milwaukee?

In South Milwaukee, snow does not fall in May through September.

Does it snow in South Milwaukee in May?

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

What is the average length of the day in May in South Milwaukee?

In South Milwaukee, Wisconsin, the average day length in May is 14h and 40min.

What time are sunrise and sunset in May in South Milwaukee?

On the first day of May in South Milwaukee, sunrise is at 5:44 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:23 pm CDT.

How many hours of sunshine does South Milwaukee have in May?

In May, the average sunshine duration in South Milwaukee is 8.7h.

How high is the UV index in May in South Milwaukee?

In South Milwaukee, Wisconsin, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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 May
South Milwaukee, WI

Average temperature in May - South Milwaukee, WI
  • Average high temperature in May: 59.2°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 47.8°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in May
South Milwaukee, WI

Average pressure in May - South Milwaukee, WI
  • Average pressure in May: 29.96"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
South Milwaukee, WI

Average wind speed in May - South Milwaukee, WI
  • Average wind speed in May: 9.5mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in May
South Milwaukee, WI

Average humidity in May - South Milwaukee, WI
  • Average humidity in May: 79%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in May
South Milwaukee, WI

Average rainfall in May - South Milwaukee, WI
  • Average rainfall in May: 2.17"

The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is February (0.75").

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Average rainfall days in May
South Milwaukee, WI

Average rainfall days in May - South Milwaukee, WI
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in May
South Milwaukee, WI

Average snowfall in May - South Milwaukee, WI
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.01").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
South Milwaukee, WI

Average snowfall days in May - South Milwaukee, WI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
South Milwaukee, WI

Average daylight in May / Average sunshine in May - South Milwaukee, WI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in May
South Milwaukee, WI

Average sunshine days in May - South Milwaukee, WI
  • Average sunshine days in May: 14 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in May
South Milwaukee, WI

Average UV index in May - South Milwaukee, WI
  • Average UV index in May: 4

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).

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Average cloud cover in May
South Milwaukee, WI

Average cloud cover in May - South Milwaukee, WI
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in May
South Milwaukee, WI

Average visibility in May - South Milwaukee, WI
  • Average visibility in May: 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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South Milwaukee, Wisconsin, USA

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