May weather forecast
Birnamwood, WI

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Weather in May

The last month of the spring, May, is a refreshing month in Birnamwood, Wisconsin, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 63.7°F (17.6°C).

Temperature

The start of May signals a clear increase in the average high-temperature, soaring from a chilly 49.3°F (9.6°C) in April to an enjoyable 63.7°F (17.6°C). May brings Birnamwood a consistent average low-temperature of 45°F (7.2°C).

Humidity

In May, the average relative humidity is 77%.

Rainfall

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

Snowfall

Months with snowfall in Birnamwood are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Birnamwood aggregates 0.12" (3mm) of snow. In Birnamwood, 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 is 14h and 52min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:02 pm. On the last day of May, in Birnamwood, sunrise is at 5:13 am and sunset at 8:35 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in May in Birnamwood is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Feb 14, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What are the temperatures in Birnamwood in May?

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

What is the average humidity in May in Birnamwood?

In May, the average relative humidity is 77%.

What is the wettest month in Birnamwood?

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

How much does it rain in Birnamwood in May?

In Birnamwood, in May, during 13.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

What is the last month it snows in Birnamwood?

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

How many hours of daylight does Birnamwood have in May?

The average day length in May in Birnamwood, Wisconsin, is 14h and 52min.

When are sunrise and sunset in May in Birnamwood?

On the first day of May, sunrise is at 5:44 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:35 pm CDT.

How long on average sun shines in May in Birnamwood?

In May, the average sunshine duration in Birnamwood, Wisconsin, is 8.5h.

How high is the UV index in May in Birnamwood?

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Birnamwood, WI

Average temperature in May - Birnamwood, 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
Birnamwood, WI

Average pressure in May - Birnamwood, 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
Birnamwood, WI

Average wind speed in May - Birnamwood, 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
Birnamwood, WI

Average humidity in May - Birnamwood, 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
Birnamwood, WI

Average rainfall in May - Birnamwood, 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
Birnamwood, WI

Average rainfall days in May - Birnamwood, 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
Birnamwood, WI

Average snowfall in May - Birnamwood, 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
Birnamwood, WI

Average snowfall days in May - Birnamwood, 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
Birnamwood, WI

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

The month with the longest days is June (Average daylight: 15h and 30min).
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
Birnamwood, WI

Average sunshine days in May - Birnamwood, 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
Birnamwood, WI

Average UV index in May - Birnamwood, 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
Birnamwood, WI

Average cloud cover in May - Birnamwood, 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
Birnamwood, WI

Average visibility in May - Birnamwood, 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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Birnamwood, Wisconsin, USA

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