May weather forecast
Appleton, WI

Colorful trees and neat lawns in Lawrence University in Appleton, Wisconsin, the river, and the rest of the city
Colorful trees and neat lawns in Lawrence University in Appleton, Wisconsin, the river, and the rest of the city

Weather in May

May, the last month of the spring in Appleton, is an enjoyable month, with an average temperature varying between 64°F (17.8°C) and 46.6°F (8.1°C).

Temperature

In May, the average high-temperature rises from a cool 50.7°F (10.4°C) in April to an enjoyable 64°F (17.8°C). In May, the average low-temperature is 46.6°F (8.1°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

The month with the most rainfall is May, when the rain falls for 15.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

Months with snowfall in Appleton are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, Appleton aggregates 0.08" (2mm) of snow. In Appleton, during the entire year, snow falls for 56.9 days and aggregates up to 21.97" (558mm) of snow.

Daylight

In May, the average length of the day is 14h and 48min.
On the first day of May in Appleton, Wisconsin, sunrise is at 5:44 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:29 pm CDT.

Sunshine

In May, the average sunshine in Appleton is 8.8h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Appleton. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Appleton?

In Appleton, Wisconsin, in May, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 46.6°F (8.1°C).

What is the average humidity in May in Appleton?

In May, the average relative humidity is 77%.

What is the wettest month in Appleton?

May is the month with the most rainfall in Appleton, Wisconsin. Rain falls for 15.9 days and accumulates 3.54" (90mm) of precipitation.

How many days does it rain in May in Appleton?

In Appleton, Wisconsin, in May, it is raining for 15.9 days, with typically 3.54" (90mm) of accumulated precipitation.

What is the last month it snows in Appleton?

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

How many hours of daylight does Appleton have in May?

In May, the average day length is 14h and 48min.

When are sunrise and sunset in May in Appleton?

On the first day of May in Appleton, Wisconsin, sunrise is at 5:44 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:29 pm CDT.

How many hours of sunshine does Appleton have in May?

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

What are the months with the highest UV index in Appleton?

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 Appleton?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Appleton, WI

Average temperature in May - Appleton, 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 (21.9°F).

  • Average low temperature in May: 46.6°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in May
Appleton, WI

Average pressure in May - Appleton, 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
Appleton, WI

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

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in May
Appleton, WI

Average humidity in May - Appleton, WI
  • Average humidity in May: 77%

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

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Average rainfall in May
Appleton, WI

Average rainfall in May - Appleton, WI
  • Average rainfall in May: 3.54"

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in May
Appleton, WI

Average rainfall days in May - Appleton, WI
  • Average rainfall days in May: 15.9 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (3.9 days).

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Average snowfall in May
Appleton, WI

Average snowfall in May - Appleton, WI
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (5.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Appleton, WI

Average snowfall days in May - Appleton, WI
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (14.2 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
Appleton, WI

Average daylight in May / Average sunshine in May - Appleton, WI
  • Average daylight in May: 14h and 48min

The month with the longest days is June (Average daylight: 15h and 28min).
The month with the shortest days is December (Average daylight: 8h and 56min).

  • Average sunshine in May: 8h and 48min

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 24min).

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Average sunshine days in May
Appleton, WI

Average sunshine days in May - Appleton, WI
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is April (11.8 days).

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Average UV index in May
Appleton, WI

Average UV index in May - Appleton, 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
Appleton, WI

Average cloud cover in May - Appleton, WI
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in May
Appleton, WI

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

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

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