May weather forecast
Butte des Morts, WI

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Weather in May

The last month of the spring, May, is an enjoyable month in Butte des Morts, Wisconsin, with temperature in the range of an average high of 64.4°F (18°C) and an average low of 46.8°F (8.2°C).

Temperature

Butte des Morts in May sees a temperature change, with average high-temperatures moving from a cool 51.3°F (10.7°C) in April to a comfortable 64.4°F (18°C). During May, the average low-temperature is a frosty 46.8°F (8.2°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Butte des Morts, in May, during 13.5 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 104.9 rainfall days, and 12.36" (314mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Butte des Morts aggregates 0.04" (1mm) of snow. Throughout the year, in Butte des Morts, there are 47.7 snowfall days, and 9.45" (240mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 47min.
On the first day of the month, sunrise is at 5:44 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:30 pm CDT.

Sunshine

In May, the average sunshine in Butte des Morts is 8.7h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 5 in May leads to these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To protect against the Sun's most potent rays, avoid direct exposure around midday. 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. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Butte des Morts, is 64.4°F (18°C), while the low-temperature averages to 46.8°F (8.2°C).

What is the average humidity in May?

The average relative humidity in May is 78%.

How many days does it rain in May?

In Butte des Morts, during May, the rain falls for 13.5 days and regularly aggregates up to 1.73" (44mm) of precipitation.

What is the last month it snows in Butte des Morts?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Butte des Morts aggregates 0.04" (1mm) of snow.

How many hours of daylight does Butte des Morts have in May?

In May, the average day length is 14h and 47min.

When are sunrise and sunset in May in Butte des Morts?

On the first day of May, sunrise is at 5:44 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:30 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.7h.

What is the UV index reading in May in Butte des Morts?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Butte des Morts, WI

Average temperature in May - Butte des Morts, WI
  • Average high temperature in May: 64.4°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in May: 46.8°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May
Butte des Morts, WI

Average pressure in May - Butte des Morts, 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).

Average wind speed in May
Butte des Morts, WI

Average wind speed in May - Butte des Morts, WI
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in May
Butte des Morts, WI

Average humidity in May - Butte des Morts, WI
  • Average humidity in May: 78%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).

Average rainfall in May
Butte des Morts, WI

Average rainfall in May - Butte des Morts, WI
  • Average rainfall in May: 1.73"

The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in May
Butte des Morts, WI

Average rainfall days in May - Butte des Morts, WI
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in May
Butte des Morts, WI

Average snowfall in May - Butte des Morts, WI
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Butte des Morts, WI

Average snowfall days in May - Butte des Morts, WI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Butte des Morts, WI

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

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 May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).

Average sunshine days in May
Butte des Morts, WI

Average sunshine days in May - Butte des Morts, WI
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (13.5 days).

Average UV index in May
Butte des Morts, WI

Average UV index in May - Butte des Morts, WI
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Butte des Morts, WI

Average cloud cover in May - Butte des Morts, WI
  • Average cloud cover in May: 42

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 33).

Average visibility in May
Butte des Morts, WI

Average visibility in May - Butte des Morts, WI
  • Average visibility in May: 6mi

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

Butte des Morts, Wisconsin, USA

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