May weather forecast
Granton, WI

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Weather in May

The last month of the spring, May, is an enjoyable month in Granton, Wisconsin, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 64.4°F (18°C).

Temperature

As Granton transitions into May, the average high-temperature shows a change, moving from a fresh 50.9°F (10.5°C) in April to an enjoyable 64.4°F (18°C). During the May nights, an average temperature of 46.4°F (8°C) is observed.

Humidity

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

Rainfall

In Granton, in May, it is raining for 15.6 days, with typically 1.89" (48mm) of accumulated precipitation. In Granton, during the entire year, the rain falls for 117.6 days and collects up to 15.75" (400mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Granton. May is the last month it regularly snows in Granton. During 0.6 snowfall days, in May, Granton aggregates 0.08" (2mm) of snow. Throughout the year, there are 68.3 snowfall days, and 15.63" (397mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 50min.
On the first day of May in Granton, sunrise is at 5:50 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:39 pm CDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Granton. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Granton?

The high-temperature, in May, in Granton, is 64.4°F (18°C), while the low-temperature averages to 46.4°F (8°C).

What is the average humidity in May in Granton?

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

How many days does it rain in May in Granton?

In Granton, Wisconsin, during May, the rain falls for 15.6 days and regularly aggregates up to 1.89" (48mm) of precipitation.

What is the last month it snows in Granton?

May is the last month it regularly snows in Granton, Wisconsin. During 0.6 snowfall days, in May, Granton aggregates 0.08" (2mm) of snow.

How many hours of daylight does Granton have in May?

In Granton, Wisconsin, the average day length in May is 14h and 50min.

What time are sunrise and sunset in May in Granton?

On the first day of May in Granton, sunrise is at 5:50 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:39 pm CDT.

How long on average sun shines in May in Granton?

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

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

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

What is the UV index reading in May in Granton?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Granton, WI

Average temperature in May - Granton, WI
  • Average high temperature in May: 64.4°F

The warmest month (with the highest average high temperature) is July (77.5°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 (6.8°F).

Average pressure in May
Granton, WI

Average pressure in May - Granton, 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
Granton, WI

Average wind speed in May - Granton, WI
  • Average wind speed in May: 8.7mph

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 (6.8mph).

Average humidity in May
Granton, WI

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

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
Granton, WI

Average rainfall in May - Granton, WI
  • Average rainfall in May: 1.89"

The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.59").

Average rainfall days in May
Granton, WI

Average rainfall days in May - Granton, WI
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (3.2 days).

Average snowfall in May
Granton, WI

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

The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Granton, WI

Average snowfall days in May - Granton, WI
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Granton, 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: 2h and 54min).

Average sunshine days in May
Granton, WI

Average sunshine days in May - Granton, WI
  • Average sunshine days in May: 12 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (12 days).

Average UV index in May
Granton, WI

Average UV index in May - Granton, 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, November and December (UV index 1).

Average cloud cover in May
Granton, WI

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

The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in May
Granton, WI

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

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

Granton, Wisconsin, USA

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