May weather forecast
Green Valley, WI

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Weather in May

May, the last month of the spring in Green Valley, is an enjoyable month, with an average temperature fluctuating between 63.9°F (17.7°C) and 44.8°F (7.1°C).

Temperature

Observing a rise in May, the average high-temperature goes from April's frosty 49.6°F (9.8°C) to a refreshing 63.9°F (17.7°C). Throughout May nights, Green Valley registers an average low-temperature of 44.8°F (7.1°C).

Humidity

April and May, with an average relative humidity of 75%, are the least humid months in Green Valley.

Rainfall

The month with the most rainfall in Green Valley is May, when the rain falls for 16.3 days and typically aggregates up to 2.95" (75mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Green Valley aggregates 0.31" (8mm) of snow. In Green Valley, Wisconsin, during the entire year, snow falls for 69.2 days and aggregates up to 26.14" (664mm) of snow.

Daylight

In May, the average length of the day is 14h and 51min.
On the first day of the month, sunrise is at 5:41 am and sunset at 7:58 pm. On the last day of May, in Green Valley, sunrise is at 5:10 am and sunset at 8:31 pm CDT.

Sunshine

In May, the average sunshine is 9h.

UV index

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during May leads to these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What are May temperatures in Green Valley?

In Green Valley, in May, the average high-temperature is 63.9°F (17.7°C), and the average low-temperature is 44.8°F (7.1°C).

What is the least humid month in Green Valley?

The months with the lowest humidity are April and May, with an average relative humidity of 75%.

What is the average humidity in May in Green Valley?

In May, the average relative humidity is 75%.

What is the rainiest month in Green Valley?

The month with the most rainfall in Green Valley, Wisconsin, is May, when the rain falls for 16.3 days and typically aggregates up to 2.95" (75mm) of precipitation.

How many days does it rain in May in Green Valley?

In Green Valley, in May, during 16.3 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

What is the last month it snows in Green Valley?

May is the last month it regularly snows in Green Valley, Wisconsin. During 0.3 snowfall days, in May, Green Valley aggregates 0.31" (8mm) of snow.

How many hours of daylight does Green Valley have in May?

In Green Valley, the average day length in May is 14h and 51min.

What time are sunrise and sunset in May in Green Valley?

In May, on the first day of the month, sunrise is at 5:41 am and sunset at 7:58 pm. On the last day of the month, in Green Valley, sunrise is at 5:10 am and sunset at 8:31 pm CDT.

How many hours of sunshine does Green Valley have in May?

In Green Valley, Wisconsin, the average sunshine duration in May is 9h.

What is the UV index reading in May in Green Valley?

In May, the average daily maximum UV index in Green Valley is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Green Valley, WI

Average temperature in May - Green Valley, WI
  • Average high temperature in May: 63.9°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 (22.6°F).

  • Average low temperature in May: 44.8°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 (12.6°F).

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Average pressure in May
Green Valley, WI

Average pressure in May - Green Valley, WI
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is 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
Green Valley, WI

Average wind speed in May - Green Valley, WI
  • Average wind speed in May: 8.2mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in May
Green Valley, WI

Average humidity in May - Green Valley, WI
  • Average humidity in May: 75%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (75%).

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Average rainfall in May
Green Valley, WI

Average rainfall in May - Green Valley, WI
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in May
Green Valley, WI

Average rainfall days in May - Green Valley, WI
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (4.5 days).

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Average snowfall in May
Green Valley, WI

Average snowfall in May - Green Valley, WI
  • Average snowfall in May: 0.31"

The month with the highest snowfall is February (6.93").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Green Valley, WI

Average snowfall days in May - Green Valley, WI
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (16.3 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
Green Valley, WI

Average daylight in May / Average sunshine in May - Green Valley, 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).

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Average sunshine days in May
Green Valley, WI

Average sunshine days in May - Green Valley, WI
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.6 days).

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Average UV index in May
Green Valley, WI

Average UV index in May - Green Valley, WI
  • Average UV index in May: 4

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

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Average cloud cover in May
Green Valley, WI

Average cloud cover in May - Green Valley, WI
  • Average cloud cover in May: 41

The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in May
Green Valley, WI

Average visibility in May - Green Valley, WI
  • Average visibility in May: 6mi

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

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Green Valley, Wisconsin, USA

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