May weather forecast
Norma, WI

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Weather in May

May, the last month of the spring in Norma, is a refreshing month, with an average temperature varying between 46.2°F (7.9°C) and 64.6°F (18.1°C).

Temperature

Norma, Wisconsin, in May sees a temperature change, with average high-temperatures moving from a cool 50.9°F (10.5°C) in April to a refreshing 64.6°F (18.1°C). During the month of May, the temperature in Norma falls to an average of 46.2°F (7.9°C).

Humidity

April and May, with an average relative humidity of 77%, are the least humid months.

Rainfall

In Norma, in May, during 16.7 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. In Norma, during the entire year, the rain falls for 127.8 days and collects up to 25.67" (652mm) of precipitation.

Snowfall

Months with snowfall in Norma are January through May, October through December. May is the last month it regularly snows in Norma. During 0.5 snowfall days, in May, Norma aggregates 0.39" (10mm) of snow. Throughout the year, in Norma, Wisconsin, there are 68.2 snowfall days, and 25.35" (644mm) of snow is accumulated.

Daylight

In May, the average length of the day in Norma is 14h and 52min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:44 pm CDT.

Sunshine

In Norma, the average sunshine in May is 8.4h.

UV index

In Norma, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 5 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. To protect against the Sun's most potent rays, avoid direct exposure around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Norma in May?

The high-temperature, in May, in Norma, is 64.6°F (18.1°C), while the low-temperature averages to 46.2°F (7.9°C).

What is the least humid month in Norma?

The months with the lowest humidity in Norma are April and May, with an average relative humidity of 77%.

What is the average humidity in May in Norma?

In Norma, the average relative humidity in May is 77%.

How much does it rain in Norma in May?

In Norma, during May, the rain falls for 16.7 days and regularly aggregates up to 3.43" (87mm) of precipitation.

What is the last month it snows in Norma?

May is the last month it regularly snows in Norma. During 0.5 snowfall days, in May, Norma aggregates 0.39" (10mm) of snow.

What is the average length of the day in May in Norma?

In May, the average day length in Norma, Wisconsin, is 14h and 52min.

When is the sunrise / sunset in May in Norma?

In May, on the first day of the month, sunrise is at 5:53 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:44 pm CDT.

How many hours of sunshine does Norma have in May?

The average sunshine duration in May is 8.4h.

What is the UV index intensity in May in Norma?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Norma, WI

Average temperature in May - Norma, WI
  • Average high temperature in May: 64.6°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in May: 46.2°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in May
Norma, WI

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

The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Norma, WI

Average wind speed in May - Norma, WI
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in May
Norma, WI

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

The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are April and May (77%).

Average rainfall in May
Norma, WI

Average rainfall in May - Norma, WI
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in May
Norma, WI

Average rainfall days in May - Norma, WI
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is January (3.1 days).

Average snowfall in May
Norma, WI

Average snowfall in May - Norma, WI
  • Average snowfall in May: 0.39"

The month with the highest snowfall is February (6.14").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Norma, WI

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

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Norma, 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 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).

Average sunshine days in May
Norma, WI

Average sunshine days in May - Norma, WI
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in May
Norma, WI

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Norma, WI

Average cloud cover in May - Norma, WI
  • Average cloud cover in May: 45

The months with the most cloud cover are January and February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in May
Norma, WI

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

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

Norma, Wisconsin, USA

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