May weather forecast
Afton, WI

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Weather in May

The last month of the spring, May, is a refreshing month in Afton, Wisconsin, with an average temperature varying between 49.5°F (9.7°C) and 67.1°F (19.5°C).

Temperature

Afton in May shows a temperature shift, moving from an average high of a fresh 54.9°F (12.7°C) in April to a comfortable 67.1°F (19.5°C). Afton reports an average low-temperature of 49.5°F (9.7°C) during the nights of May.

Humidity

The average relative humidity in May is 79%.

Rainfall

In Afton, in May, during 16 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 127.7 rainfall days, and 17.87" (454mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Afton.

Daylight

In May, the average length of the day is 14h and 38min.
On the first day of the month, sunrise is at 5:49 am and sunset at 7:56 pm. On the last day of May, in Afton, sunrise is at 5:21 am and sunset at 8:26 pm CDT.

Sunshine

The average sunshine in May is 8.5h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Make use of precautions - It is urged to ward off sun damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What are the temperatures in Afton in May?

An average high-temperature, in May, in Afton, is 67.1°F (19.5°C) and the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in May in Afton?

In May, the average relative humidity in Afton is 79%.

How many days does it rain in May in Afton?

In Afton, Wisconsin, during May, the rain falls for 16 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Afton?

In Afton, snow does not fall in May through September.

Does it snow in Afton in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Afton have in May?

In May, the average day length is 14h and 38min.

When are sunrise and sunset in May in Afton?

On the first day of May in Afton, sunrise is at 5:49 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:26 pm CDT.

How long on average sun shines in May in Afton?

In May, the average sunshine duration is 8.5h.

What is the UV index reading in May in Afton?

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

Average temperature in May - Afton, WI
  • Average high temperature in May: 67.1°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in May: 49.5°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

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Average pressure in May
Afton, WI

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Afton, WI

Average wind speed in May - Afton, WI
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in May
Afton, WI

Average humidity in May - Afton, WI
  • Average humidity in May: 79%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).

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Average rainfall in May
Afton, WI

Average rainfall in May - Afton, WI
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is June (2.76").
The driest months (with the least rainfall) are January and February (0.75").

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Average rainfall days in May
Afton, WI

Average rainfall days in May - Afton, WI
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall in May
Afton, WI

Average snowfall in May - Afton, WI
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Afton, WI

Average snowfall days in May - Afton, WI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (12.5 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
Afton, WI

Average daylight in May / Average sunshine in May - Afton, WI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in May
Afton, WI

Average sunshine days in May - Afton, WI
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in May
Afton, WI

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Afton, WI

Average cloud cover in May - Afton, WI
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).

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Average visibility in May
Afton, WI

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

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

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Afton, Wisconsin, USA

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