May weather forecast
Marion, WI

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Weather in May

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

Temperature

As Marion transitions into May, the average high-temperature is observed to rise from a cool 50.7°F (10.4°C) in April to a comfortable 64°F (17.8°C). During May, the nighttime temperature averages of 45.5°F (7.5°C).

Humidity

In May, the average relative humidity 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

Months with snowfall in Marion, Wisconsin, are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Marion aggregates 0.2" (5mm) of snow. Throughout the year, there are 51.8 snowfall days, and 17.28" (439mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 50min.
On the first day of May, sunrise is at 5:44 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:33 pm CDT.

Sunshine

In Marion, the average sunshine in May 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 of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Marion in May?

In May, in Marion, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 45.5°F (7.5°C).

What is the average humidity in May in Marion?

The average relative humidity in May in Marion is 77%.

What is the wettest month in Marion?

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

How many days does it rain in May in Marion?

In Marion, Wisconsin, during May, the rain falls for 15.8 days and regularly aggregates up to 2.83" (72mm) of precipitation.

What is the last month it snows in Marion?

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

How many hours of daylight does Marion have in May?

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

When is the sunrise / sunset in May in Marion?

On the first day of May, sunrise is at 5:44 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:33 pm CDT.

How long on average sun shines in May in Marion?

In Marion, Wisconsin, the average sunshine duration in May is 8.8h.

What is the month with the highest UV index in Marion?

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

What is the UV index intensity in May in Marion?

In May, the average daily maximum UV index in Marion is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
Marion, WI

Average temperature in May - Marion, 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).

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Average pressure in May
Marion, WI

Average pressure in May - Marion, 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).

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Average wind speed in May
Marion, WI

Average wind speed in May - Marion, 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).

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Average humidity in May
Marion, WI

Average humidity in May - Marion, 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%).

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Average rainfall in May
Marion, WI

Average rainfall in May - Marion, 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").

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Average rainfall days in May
Marion, WI

Average rainfall days in May - Marion, 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).

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Average snowfall in May
Marion, WI

Average snowfall in May - Marion, 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").

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Average snowfall days in May
Marion, WI

Average snowfall days in May - Marion, 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).

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

Average daylight in May / Average sunshine in May - Marion, 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).

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Average sunshine days in May
Marion, WI

Average sunshine days in May - Marion, 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).

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Average UV index in May
Marion, WI

Average UV index in May - Marion, 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).

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Average cloud cover in May
Marion, WI

Average cloud cover in May - Marion, 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).

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Average visibility in May
Marion, WI

Average visibility in May - Marion, 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).

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Marion, Wisconsin, USA

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