May weather forecast
Big Flats, WI

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Weather in May

The last month of the spring, May, is a refreshing month in Big Flats, Wisconsin, with temperature in the range of an average low of 47.8°F (8.8°C) and an average high of 65.7°F (18.7°C).

Temperature

In May, the average high-temperature increases from a cool 52.3°F (11.3°C) in April to a comfortable 65.7°F (18.7°C). Big Flats records an average low of 47.8°F (8.8°C) throughout the nights in May.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Big Flats, during May, the rain falls for 16.5 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 129.4 rainfall days, and 26.3" (668mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Big Flats. During 0.2 snowfall days, in May, Big Flats aggregates 0.08" (2mm) of snow. In Big Flats, during the entire year, snow falls for 55 days and aggregates up to 21.77" (553mm) of snow.

Daylight

The average length of the day in May in Big Flats is 14h and 47min.
On the first day of May in Big Flats, sunrise is at 5:49 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:35 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 5 suggests this advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What is the temperature in May in Big Flats?

The high-temperature, in May, in Big Flats, is 65.7°F (18.7°C), while the low-temperature averages to 47.8°F (8.8°C).

What is the average humidity in May in Big Flats?

The average relative humidity in May in Big Flats is 78%.

How much does it rain in Big Flats in May?

In Big Flats, Wisconsin, during May, the rain falls for 16.5 days and regularly aggregates up to 3.39" (86mm) of precipitation.

What is the last month it snows in Big Flats?

May is the last month it regularly snows in Big Flats, Wisconsin. During 0.2 snowfall days, in May, Big Flats aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in Big Flats?

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

When is the sunrise / sunset in May in Big Flats?

On the first day of May, sunrise is at 5:49 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:35 pm CDT.

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

In Big Flats, the average sunshine duration in May is 8.6h.

How high is the UV index in May in Big Flats?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Big Flats, WI

Average temperature in May - Big Flats, WI
  • Average high temperature in May: 65.7°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (21.7°F).

  • Average low temperature in May: 47.8°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 (9.9°F).

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Average pressure in May
Big Flats, WI

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

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in May
Big Flats, WI

Average wind speed in May - Big Flats, WI
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in May
Big Flats, WI

Average humidity in May - Big Flats, 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 (75%).

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Average rainfall in May
Big Flats, WI

Average rainfall in May - Big Flats, WI
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in May
Big Flats, WI

Average rainfall days in May - Big Flats, WI
  • Average rainfall days in May: 16.5 days

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (3.9 days).

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Average snowfall in May
Big Flats, WI

Average snowfall in May - Big Flats, WI
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Big Flats, WI

Average snowfall days in May - Big Flats, WI
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (12.8 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
Big Flats, WI

Average daylight in May / Average sunshine in May - Big Flats, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in May
Big Flats, WI

Average sunshine days in May - Big Flats, WI
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in May
Big Flats, WI

Average UV index in May - Big Flats, 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).

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Average cloud cover in May
Big Flats, WI

Average cloud cover in May - Big Flats, WI
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in May
Big Flats, WI

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

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

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Big Flats, Wisconsin, USA

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