Green Bay
Wisconsin, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Green Bay, WI

An aerial panorama of the sun setting over Green Bay in Wisconsin
An aerial panorama of the sun setting over Green Bay in Wisconsin
The first month of the spring, March, is a cold month in Green Bay, Wisconsin, with average temperature ranging between min 22.5°F (-5.3°C) and max 39.2°F (4°C).

Temperature

In March, the average high-temperature rises, from a freezing cold 28.2°F (-2.1°C) in February, to a wintry 39.2°F (4°C). In March, the average low-temperature is 22.5°F (-5.3°C).

Humidity

The average relative humidity in Green Bay is 72.8%.

Rainfall

In Green Bay, during March, the rain falls for 10.6 days and regularly aggregates up to 1.9" (47mm) of precipitation. In Green Bay, Wisconsin, during the entire year, the rain falls for 123 days and collects up to 29.5" (749.9mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Green Bay, during 6.9 snowfall days, 8.1" (205.7mm) of snow is typically accumulated. Throughout the year, in Green Bay, there are 40.2 snowfall days, and 51.4" (1305.6mm) of snow is accumulated.

Ocean temperature

In Green Bay, the average seawater temperature in March is 36.3°F (2.4°C).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

In March, the average length of the day in Green Bay is 12h.

Sunshine

The average sunshine is 6.4h.

UV index

In Green Bay, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 3 in March interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in March in Green Bay?

In March, the average high-temperature is 39.2°F (4°C), and the average low-temperature is 22.5°F (-5.3°C).

What is the average humidity in March in Green Bay?

The average relative humidity in March is 72.8%.

How much does it rain in Green Bay in March?

In March, in Green Bay, Wisconsin, the rain falls for 10.6 days. Throughout March, 1.9" (47mm) of precipitation is accumulated.

How much does it snow in Green Bay in March?

In Green Bay, in March, during 6.9 snowfall days, 8.1" (205.7mm) of snow is typically accumulated.

What is the ocean temperature in March in Green Bay?

In Green Bay, the average seawater temperature in March is 36.3°F (2.4°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Green Bay have in March?

In Green Bay, the average length of the day in March is 12h.

How long on average sun shines in March in Green Bay?

The average sunshine in March in Green Bay, Wisconsin, is 6.4h.

What is the UV index intensity in March in Green Bay?

In March, the average daily maximum UV index in Green Bay is 3. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in March - Green Bay, WI
  • Average high temperature in March: 39.2°F

The warmest month (with the highest average high temperature) is July (79.8°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in March: 22.4°F

The month with the highest average low temperature is July (58.4°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average humidity in March - Green Bay, WI
  • Average humidity in March: 72.8%

The month with the highest relative humidity is December (77.3%).
The month with the lowest relative humidity is May (65.9%).

Average rainfall in March - Green Bay, WI
  • Average rainfall in March: 1.9"

The wettest month (with the highest rainfall) is June (3.9").
Driest months (with the lowest rainfall) are January and February (1.1").

Average rainfall days in March - Green Bay, WI
  • Average rainfall days in March: 10.6 days

The month with the highest number of rainy days is May (11.4 days).
The month with the lowest number of rainy days is February (8.4 days).

Average snowfall in March - Green Bay, WI
  • Average snowfall in March: 8.1"

The month with the highest snowfall is December (13.1").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in March - Green Bay, WI
  • Average snowfall days in March: 6.9 days

The month with the highest number of snowfall days is January (9.6 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in March - Green Bay, WI
  • Average sea temperature in March: 36.3°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 March / Average sunshine in March - Green Bay, WI
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).

  • Average sunshine in March: 6.4h

Months with most sunshine are June and July (Average sunshine: 10.1h).
Months with least sunshine are November and December (Average sunshine: 3.6).

Average UV index in March - Green Bay, WI
  • Average UV index in March: 3

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).