Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May shows a rise in the average high-temperature, moving from April's cool 50.2°F (10.1°C) to a comfortable 63.3°F (17.4°C). Throughout May, an average low-temperature of 45.3°F (7.4°C) is expected.Humidity
The months with the lowest humidity in Green Bay are April and May, with an average relative humidity of 76%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.9 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Green Bay, Wisconsin. During 0.2 snowfall days, in May, Green Bay aggregates 0.24" (6mm) of snow. In Green Bay, Wisconsin, during the entire year, snow falls for 63.7 days and aggregates up to 23.27" (591mm) of snow.Ocean temperature
In Green Bay, the average seawater temperature in May is 41.4°F (5.2°C).Note: Unprotected swimming in 41.4°F (5.2°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.
Daylight
In May, the average length of the day in Green Bay is 14h and 49min.On the first day of the month, sunrise is at 5:41 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:29 pm CDT.
Sunshine
In Green Bay, Wisconsin, the average sunshine in May is 8.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in May translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the temperature in May in Green Bay?
What are the least humid months in Green Bay?
What is the average humidity in May in Green Bay?
What is the wettest month in Green Bay?
How much does it rain in Green Bay in May?
What is the last month it snows in Green Bay?
How cold is the water in May in Green Bay?
How many hours of daylight does Green Bay have in May?
When is the sunrise / sunset in May in Green Bay?
How many hours of sunshine does Green Bay have in May?
What is the UV index intensity in May in Green Bay?
Average temperature in May
Green Bay, WI
- Average high temperature in May: 63.3°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in May: 45.3°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in May
Green Bay, WI
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Green Bay, WI
- Average wind speed in May: 8.7mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in May
Green Bay, WI
- Average humidity in May: 76%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in May
Green Bay, WI
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in May
Green Bay, 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 February (3.7 days).
Average snowfall in May
Green Bay, WI
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Green Bay, WI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Green Bay, WI
- Average sea temperature in May: 41.4°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is February (36.1°F).
Average daylight in May /
Average sunshine in May
Green Bay, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in May
Green Bay, WI
- Average sunshine days in May: 13.3 days
The months with the most sunshine days are September and November (17 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in May
Green Bay, WI
- Average UV index in May: 4
The months with the highest UV index are 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
Green Bay, WI
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Green Bay, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Green Bay, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location