Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
With the arrival of April in Green Bay, the average high-temperature transitions from an icy 38.5°F (3.6°C) in March to a fresh 50.2°F (10.1°C). Nighttime temperatures in Green Bay consistently average an icy 35.2°F (1.8°C) during April.Humidity
April and May, with an average relative humidity of 76%, are the least humid months in Green Bay.Rainfall
In Green Bay, in April, during 14 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Green Bay, Wisconsin, during the entire year, the rain falls for 130.8 days and collects up to 24.8" (630mm) of precipitation.Snowfall
Months with snowfall in Green Bay, Wisconsin, are January through May, October through December. In Green Bay, during April, snow falls for 4.3 days and regularly aggregates up to 2.72" (69mm) of snow. Throughout the year, in Green Bay, there are 63.7 snowfall days, and 23.27" (591mm) of snow is accumulated.Ocean temperature
In Green Bay, in April, the average water temperature is 38.8°F (3.8°C).Note: In swimming undertakings, this is deemed life-threatening and highly risky. The cold water induces intense discomfort and leads to swift hyperventilation. A specialized swimsuit is indispensable to decrease thermal injuries.
Daylight
In Green Bay, the average length of the day in April is 13h and 31min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:20 pm. On the last day of April, sunrise is at 5:42 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in April in Green Bay is 7.2h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 3 in April interprets into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the temperature in April in Green Bay?
What is the least humid month in Green Bay?
What is the average humidity in April in Green Bay?
How much does it rain in Green Bay in April?
How many days does it snow in April in Green Bay?
What is the ocean temperature in April in Green Bay?
What is the average length of the day in April in Green Bay?
When are sunrise and sunset in April in Green Bay?
How long on average sun shines in April in Green Bay?
How high is the UV index in April in Green Bay?
Average temperature in April
Green Bay, WI
- Average high temperature in April: 50.2°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 April: 35.2°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 April
Green Bay, WI
- Average pressure in April: 29.97"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 April
Green Bay, WI
- Average wind speed in April: 9.8mph
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 April
Green Bay, WI
- Average humidity in April: 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 April
Green Bay, WI
- Average rainfall in April: 2.56"
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 April
Green Bay, WI
- Average rainfall days in April: 14 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 April
Green Bay, WI
- Average snowfall in April: 2.72"
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 April
Green Bay, WI
- Average snowfall days in April: 4.3 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 April
Green Bay, WI
- Average sea temperature in April: 38.8°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 April /
Average sunshine in April
Green Bay, WI
- Average daylight in April: 13h and 3min
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 April: 7h and 1min
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 April
Green Bay, WI
- Average sunshine days in April: 11.6 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 April
Green Bay, WI
- Average UV index in April: 3
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 April
Green Bay, WI
- Average cloud cover in April: 52
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 April
Green Bay, WI
- Average visibility in April: 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
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