May weather forecast
Hewitt, WI

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Weather in May

May, the last month of the spring in Hewitt, is an enjoyable month, with an average temperature fluctuating between 46.4°F (8°C) and 64°F (17.8°C).

Temperature

A rise in the average high-temperature is observed during May, moving from a chilly 49.8°F (9.9°C) in April to a refreshing 64°F (17.8°C). The nighttime temperature in Hewitt dips to a chilly 46.4°F (8°C) on average during May.

Humidity

The average relative humidity in May in Hewitt is 78%.

Rainfall

In Hewitt, Wisconsin, during May, the rain falls for 17.4 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Hewitt, Wisconsin, during the entire year, the rain falls for 138.3 days and collects up to 25.12" (638mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, Hewitt aggregates 0.2" (5mm) of snow. Throughout the year, there are 79.6 snowfall days, and 31.1" (790mm) of snow is accumulated.

Daylight

In Hewitt, the average length of the day in May is 14h and 50min.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:05 pm. On the last day of May, in Hewitt, sunrise is at 5:18 am and sunset at 8:38 pm CDT.

Sunshine

In Hewitt, the average sunshine in May is 8.5h.

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 medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Hewitt?

The high-temperature, in May, in Hewitt, is 64°F (17.8°C), while the low-temperature averages to 46.4°F (8°C).

What is the average humidity in May in Hewitt?

In Hewitt, the average relative humidity in May is 78%.

How many days does it rain in May in Hewitt?

In May, in Hewitt, Wisconsin, the rain falls for 17.4 days. Throughout May, 2.87" (73mm) of precipitation is accumulated.

What is the last month it snows in Hewitt?

May is the last month it regularly snows in Hewitt. During 0.5 snowfall days, in May, Hewitt aggregates 0.2" (5mm) of snow.

How many hours of daylight does Hewitt have in May?

The average day length in May in Hewitt, Wisconsin, is 14h and 50min.

What time are sunrise and sunset in May in Hewitt?

In May, on the first day of the month, sunrise is at 5:49 am and sunset at 8:05 pm. On the last day of the month, in Hewitt, Wisconsin, sunrise is at 5:18 am and sunset at 8:38 pm CDT.

How many hours of sunshine does Hewitt have in May?

In Hewitt, Wisconsin, the average sunshine duration in May is 8.5h.

When is the highest UV index in Hewitt?

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

How high is the UV index in May in Hewitt?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Hewitt, WI

Average temperature in May - Hewitt, WI
  • Average high temperature in May: 64°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in May: 46.4°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 (7.3°F).

Average pressure in May
Hewitt, WI

Average pressure in May - Hewitt, 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 (29.9"Hg).

Average wind speed in May
Hewitt, WI

Average wind speed in May - Hewitt, 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 (7mph).

Average humidity in May
Hewitt, WI

Average humidity in May - Hewitt, WI
  • Average humidity in May: 78%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (77%).

Average rainfall in May
Hewitt, WI

Average rainfall in May - Hewitt, WI
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in May
Hewitt, WI

Average rainfall days in May - Hewitt, WI
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in May
Hewitt, WI

Average snowfall in May - Hewitt, WI
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (7.05").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Hewitt, WI

Average snowfall days in May - Hewitt, WI
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Hewitt, 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 3min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in May
Hewitt, WI

Average sunshine days in May - Hewitt, WI
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in May
Hewitt, WI

Average UV index in May - Hewitt, 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).

Average cloud cover in May
Hewitt, WI

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

The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in May
Hewitt, WI

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

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

Hewitt, Wisconsin, USA

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