May weather forecast
Big Falls, WI

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Weather in May

The last month of the spring, May, is an enjoyable month in Big Falls, Wisconsin, with an average temperature ranging between min 45.5°F (7.5°C) and max 64°F (17.8°C).

Temperature

May sees a rise in the average high-temperature, climbing from a cool 50.7°F (10.4°C) in April to a refreshing 64°F (17.8°C). May witnesses an average nighttime temperature of 45.5°F (7.5°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

The month with the most rainfall is May, when the rain falls for 15.8 days and typically aggregates up to 2.83" (72mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Big Falls. During 0.1 snowfall days, in May, Big Falls aggregates 0.2" (5mm) of snow. In Big Falls, during the entire year, snow falls for 51.8 days and aggregates up to 17.28" (439mm) of snow.

Daylight

In Big Falls, the average length of the day in May is 14h and 50min.
On the first day of May, sunrise is at 5:44 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:33 pm CDT.

Sunshine

In May, the average sunshine is 8.8h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 5 in May transforms into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Big Falls, is 64°F (17.8°C), while the low-temperature averages to 45.5°F (7.5°C).

What is the average humidity in May?

The average relative humidity in May is 77%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 15.8 days and accumulates 2.83" (72mm) of precipitation.

How many days does it rain in May in Big Falls?

In Big Falls, in May, it is raining for 15.8 days, with typically 2.83" (72mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Big Falls aggregates 0.2" (5mm) of snow.

How many hours of daylight does Big Falls have in May?

In Big Falls, the average day length in May is 14h and 50min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:44 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:33 pm CDT.

How many hours of sunshine does Big Falls have in May?

The average sunshine duration in May is 8.8h.

What is the month with the highest UV index?

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

How high is the UV index in May?

In Big Falls, the average daily maximum UV index in May is 5. A UV Index estimate 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
Big Falls, WI

Average temperature in May - Big Falls, 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 (21.7°F).

  • Average low temperature in May: 45.5°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May
Big Falls, WI

Average pressure in May - Big Falls, 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 (29.91"Hg).

Average wind speed in May
Big Falls, WI

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

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in May
Big Falls, WI

Average humidity in May - Big Falls, WI
  • Average humidity in May: 77%

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

Average rainfall in May
Big Falls, WI

Average rainfall in May - Big Falls, WI
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in May
Big Falls, WI

Average rainfall days in May - Big Falls, WI
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (3.5 days).

Average snowfall in May
Big Falls, WI

Average snowfall in May - Big Falls, WI
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Big Falls, WI

Average snowfall days in May - Big Falls, 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
Big Falls, WI

Average daylight in May / Average sunshine in May - Big Falls, 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 54min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in May
Big Falls, WI

Average sunshine days in May - Big Falls, WI
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in May
Big Falls, WI

Average UV index in May - Big Falls, WI
  • Average UV index in May: 5

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

Average cloud cover in May
Big Falls, WI

Average cloud cover in May - Big Falls, WI
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in May
Big Falls, WI

Average visibility in May - Big Falls, WI
  • Average visibility in May: 6mi

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

Big Falls, Wisconsin, USA

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