May weather forecast
Birchwood, WI

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Weather in May

May, the last month of the spring in Birchwood, is a comfortable month, with an average temperature ranging between max 64°F (17.8°C) and min 45°F (7.2°C).

Temperature

May's arrival signals a significant increase in average high-temperatures, soaring from April's chilly 49.6°F (9.8°C) to a refreshing 64°F (17.8°C). The nighttime temperature dips to a frosty 45°F (7.2°C) on average during May.

Humidity

The least humid month is May, with an average relative humidity of 76%.

Rainfall

In Birchwood, in May, it is raining for 15.8 days, with typically 2.91" (74mm) of accumulated precipitation. In Birchwood, during the entire year, the rain falls for 128.9 days and collects up to 23.46" (596mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1 snowfall days, in May, Birchwood aggregates 1.14" (29mm) of snow. Throughout the year, there are 83.1 snowfall days, and 28.98" (736mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 56min.
On the first day of May, sunrise is at 5:52 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:47 pm CDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

May through July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In Birchwood, in May, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 45°F (7.2°C).

What is the least humid month?

With an average relative humidity of 76%, May is the least humid month.

What is the average humidity in May?

In May, the average relative humidity is 76%.

How many days does it rain in May?

In May, the rain falls for 15.8 days. Throughout May, 2.91" (74mm) of precipitation is accumulated.

What is the last month it snows in Birchwood?

May is the last month it regularly snows. During 1 snowfall days, in May, Birchwood aggregates 1.14" (29mm) of snow.

What is the average length of the day in May?

In Birchwood, the average day length in May is 14h and 56min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 5:52 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:47 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.1h.

What is the month with the highest UV index?

May through July, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in May?

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

Average temperature in May - Birchwood, WI
  • Average high temperature in May: 64°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (17.6°F).

  • Average low temperature in May: 45°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in May
Birchwood, WI

Average pressure in May - Birchwood, WI
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Birchwood, WI

Average wind speed in May - Birchwood, WI
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in May
Birchwood, WI

Average humidity in May - Birchwood, WI
  • Average humidity in May: 76%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (76%).

Average rainfall in May
Birchwood, WI

Average rainfall in May - Birchwood, WI
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in May
Birchwood, WI

Average rainfall days in May - Birchwood, WI
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in May
Birchwood, WI

Average snowfall in May - Birchwood, WI
  • Average snowfall in May: 1.14"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Birchwood, WI

Average snowfall days in May - Birchwood, WI
  • Average snowfall days in May: 1 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Birchwood, WI

Average daylight in May / Average sunshine in May - Birchwood, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in May
Birchwood, WI

Average sunshine days in May - Birchwood, WI
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in May
Birchwood, WI

Average UV index in May - Birchwood, WI
  • Average UV index in May: 5

The months with the highest UV index are May, June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
Birchwood, WI

Average cloud cover in May - Birchwood, WI
  • Average cloud cover in May: 47

The months with the most cloud cover are January and February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in May
Birchwood, WI

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

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).

Birchwood, Wisconsin, USA

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