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
Green Bay sees a rise in temperature during April, with average high-temperatures transitioning from a wintry 38.5°F (3.6°C) in March to a cool 50.2°F (10.1°C). Green Bay experiences a nighttime temperature average of 35.2°F (1.8°C) during April.Humidity
April and May, with an average relative humidity of 76%, are the least humid months.Rainfall
In Green Bay, during April, the rain falls for 14 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Green Bay, during the entire year, the rain falls for 130.8 days and collects up to 24.8" (630mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Green Bay, in April, during 4.3 snowfall days, 2.72" (69mm) of snow is typically accumulated. 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, in April, the average water temperature is 38.8°F (3.8°C).Note: During swimming, this scenario is excessively cold, hazardous, and can lead to fatality. Hypothermia ensues swiftly without suitable insulated waterproof wear.
Daylight
In April, the average length of the day is 13h and 31min.On the first day of April, sunrise is at 6:31 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:55 pm CDT.
Sunshine
In Green Bay, the average sunshine in April is 7.2h.UV index
In Green Bay, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the least humid month?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
What is the water temperature in April?
How many hours of daylight does Green Bay have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Green Bay have in April?
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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