May weather forecast
Thornapple, WI

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Weather in May

The last month of the spring, May, is a refreshing month in Thornapple, Wisconsin, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 64.4°F (18°C).

Temperature

The beginning of May signals a clear escalation in the average high-temperature, soaring from a chilly 49.6°F (9.8°C) in April to a refreshing 64.4°F (18°C). Thornapple's temperature tends to fall to an average low of 44.2°F (6.8°C) during the nights of May.

Humidity

May is the least humid month, with an average relative humidity of 75%.

Rainfall

In Thornapple, during May, the rain falls for 16.8 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 128.5 rainfall days, and 23.94" (608mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.7 snowfall days, in May, Thornapple aggregates 1.02" (26mm) of snow. In Thornapple, during the entire year, snow falls for 88.7 days and aggregates up to 35.87" (911mm) of snow.

Daylight

The average length of the day in May is 14h and 55min.
On the first day of May, sunrise is at 5:51 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:45 pm CDT.

Sunshine

In Thornapple, the average sunshine in May is 8.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Thornapple in May?

Thornapple in May has an average high-temperature of 64.4°F (18°C) and an average low-temperature of 44.2°F (6.8°C).

What is the least humid month in Thornapple?

May is the least humid month, with an average relative humidity of 75%.

What is the average humidity in May?

In May, the average relative humidity is 75%.

How many days does it rain in May in Thornapple?

In Thornapple, in May, it is raining for 16.8 days, with typically 2.83" (72mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.7 snowfall days, in May, Thornapple aggregates 1.02" (26mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 55min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:51 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:45 pm CDT.

How long on average sun shines in May in Thornapple?

In May, the average sunshine duration is 8.3h.

When is the highest UV index?

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

Average temperature in May - Thornapple, WI
  • Average high temperature in May: 64.4°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 (18.1°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure in May
Thornapple, WI

Average pressure in May - Thornapple, WI
  • Average pressure in May: 29.95"Hg

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Thornapple, WI

Average wind speed in May - Thornapple, WI
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in May
Thornapple, WI

Average humidity in May - Thornapple, WI
  • Average humidity in May: 75%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (75%).

Average rainfall in May
Thornapple, WI

Average rainfall in May - Thornapple, WI
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.98").

Average rainfall days in May
Thornapple, WI

Average rainfall days in May - Thornapple, WI
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in May
Thornapple, WI

Average snowfall in May - Thornapple, WI
  • Average snowfall in May: 1.02"

The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Thornapple, WI

Average snowfall days in May - Thornapple, WI
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Thornapple, WI
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).

Average sunshine days in May
Thornapple, WI

Average sunshine days in May - Thornapple, WI
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and April (10 days).

Average UV index in May
Thornapple, WI

Average UV index in May - Thornapple, 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, February and December (UV index 1).

Average cloud cover in May
Thornapple, WI

Average cloud cover in May - Thornapple, WI
  • Average cloud cover in May: 46

The months with the most cloud cover are January and February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in May
Thornapple, WI

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

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).

Thornapple, Wisconsin, USA

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