May weather forecast
Wausau, WI

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An aerial panorama of downtown Wausau City in Wisconsin
An aerial panorama of downtown Wausau City in Wisconsin

Weather in May

May hails the arrival of pleasant weather in Wausau, with the spring season in full bloom. The cold winters are now replaced by warm sunny days, making outdoor activities even more delightful. Notably, May records a shift towards warmer climes, with snowfall now a thing of the past, paving the way for clear skies and ample sunshine. The month serves as a beautiful gateway leading to the coming summer season. May delights the citizens of Wausau with its vibrant colors as the city thrives under the sun-kissed days.

Temperature

May indicates a noticeable escalation in the average high-temperature, moving up from a chilly 49.3°F (9.6°C) in April to an enjoyable 63.7°F (17.6°C). Throughout May, an average low-temperature of 45°F (7.2°C) is expected.

Humidity

In Wausau, the average relative humidity in May is 77%.

Rainfall

The months with the most rainfall are May and June, with an average 1.46" (37mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Wausau aggregates 0.12" (3mm) of snow. In Wausau, during the entire year, snow falls for 68.7 days and aggregates up to 11.18" (284mm) of snow.

Daylight

The average length of the day in May in Wausau, Wisconsin, is 14h and 52min.
On the first day of May in Wausau, Wisconsin, sunrise is at 5:46 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:37 pm CDT.

Sunshine

In Wausau, the average sunshine in May is 8.5h.

UV index

In Wausau, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 4 in May leads to these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the average May temperature in Wausau?

The average high-temperature, in May, in Wausau, is 63.7°F (17.6°C), while the average low-temperature is 45°F (7.2°C).

What is the average humidity in May in Wausau?

In May, the average relative humidity is 77%.

What is the wettest month in Wausau?

The wettest months are May and June, with an average 1.46" (37mm) of rainfall.

How many days does it rain in May in Wausau?

In Wausau, Wisconsin, during May, the rain falls for 13.4 days and regularly aggregates up to 1.46" (37mm) of precipitation.

What is the last month it snows in Wausau?

May is the last month it regularly snows in Wausau. During 0.5 snowfall days, in May, Wausau aggregates 0.12" (3mm) of snow.

How many hours of daylight does Wausau have in May?

In May, the average day length is 14h and 52min.

When are sunrise and sunset in May in Wausau?

In May, on the first day of the month, sunrise is at 5:46 am and sunset at 8:04 pm. On the last day of the month, in Wausau, Wisconsin, sunrise is at 5:15 am and sunset at 8:37 pm CDT.

How long on average sun shines in May in Wausau?

The average sunshine duration in May in Wausau, Wisconsin, is 8.5h.

What is the UV index reading in May in Wausau?

In Wausau, Wisconsin, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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 May
Wausau, WI

Average temperature in May - Wausau, WI
  • Average high temperature in May: 63.7°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.8°F).

  • Average low temperature in May: 45°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

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Average pressure in May
Wausau, WI

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

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Wausau, WI

Average wind speed in May - Wausau, WI
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in May
Wausau, WI

Average humidity in May - Wausau, WI
  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in May
Wausau, WI

Average rainfall in May - Wausau, WI
  • Average rainfall in May: 1.46"

The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in May
Wausau, WI

Average rainfall days in May - Wausau, WI
  • Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall in May
Wausau, WI

Average snowfall in May - Wausau, WI
  • Average snowfall in May: 0.12"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Wausau, WI

Average snowfall days in May - Wausau, WI
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (15.2 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
Wausau, WI

Average daylight in May / Average sunshine in May - Wausau, WI
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in May
Wausau, WI

Average sunshine days in May - Wausau, WI
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is April (13.4 days).

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Average UV index in May
Wausau, WI

Average UV index in May - Wausau, 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, February and December (UV index 1).

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Average cloud cover in May
Wausau, WI

Average cloud cover in May - Wausau, WI
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in May
Wausau, WI

Average visibility in May - Wausau, WI
  • Average visibility in May: 6mi

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

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Wausau, Wisconsin, USA

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