Green Bay Snowfall Totals & Accumulation Averages

How Often it Snows in Green Bay

The next two tables list monthly and yearly totals for amount of snow and how many days it snows at least 0.1 inches (0.25 centimetres).

10-year snowfall averages at Green Bay, 2010 to 2019

Days		Inches	Centi­metres
3.8	January	12.6	32.1
4.0	February	14.0	35.7
2.6	March	8.4	21.3
1.6	April	7.4	18.8
0.0	May	0.1	0.3
0.3	October	0.6	1.4
0.9	November	2.7	6.9
3.6	December	14.7	37.4
16.8	Year	60.5	153.8

30-year snowfall averages at Green Bay, 1991 to 2020

Days		Inches	Centi­metres
10.3	January	14.3	36.3
8.4	February	12.0	30.5
6.3	March	8.1	20.6
2.9	April	4.7	11.9
0.1	May	0.0	0.0
0.4	October	0.3	0.8
3.5	November	3.1	7.9
8.9	December	13.1	33.3
40.8	Year	55.6	141.2

These averages don't show how much the snowfall in Green Bay varies from year to year.

In December, for instance, one in four years totals over 20.5 inches of snow. Another 25 percent of years receive less than 4.6 inches for the month.

Similarly in January, fresh snowfall in the heaviest years amounts to over 17.8 inches, while the lightest years get less than nine inches.

New snow for February ranges from over 16.6 inches in heavy snowfall years to under 7 inches in light years.

When Green Bay Has Its First & Last Snowfalls

The first snowfall of winter for Green Bay usually arrives in November, although sometimes October gets snow.

The season's last snowfall typically happens in April. Very rarely a few snowflakes fall in May.

Green Bay is normally free of snow every year from June to September.

How Many Snowstorms Green Bay Gets

Most days of snowfall in Green Bay leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 17 days a year on average, the amount of new snow totals at least an inch.

Snowstorms of over five inches a day normally occur twice year. But major blizzards that dump ten inches or more in one day are rare events that don't happen every year.

Number of days per month and year on average in Green Bay with a total snowfall of at least 1, 3, 5 or 10 inches

1 inch 2.5 cm	3 inches 7.6 cm		5 inches 12.7 cm	10 inches 25.4 cm
4.5	1.7	January	0.6	0.0
3.5	1.3	February	0.5	0.0
2.6	0.7	March	0.3	0.1
1.3	0.5	April	0.1	0.1
0.2	0.0	October	0.0	0.0
0.9	0.1	November	0.0	0.0
3.7	1.5	December	0.6	0.1
16.7	5.8	Year	2.1	0.3

How Much Snow Normally Accumulates in Green Bay

On most winter days, Green Bay has at least an inch of snow on the ground.

Snow mainly accumulates during January and February. Typically, on five days in January and in February, the snow covering Green Bay gets to ten or more inches deep.

Average total days per month and year in Green Bay with snow depth of at least 1, 3, 5 or 10 inches on the ground

1 inch 2.5 cm	3 inches 7.6 cm		5 inches 12.7 cm	10 inches 25.4 cm
24.3	20.1	January	15.9	4.4
23.5	19.6	February	14.7	5.2
13.0	7.8	March	5.8	2.1
2.3	1.1	April	0.6	0.2
0.1	0.0	October	0.0	0.0
2.5	0.9	November	0.2	0.1
16.7	11.1	December	7.8	2.3
82.4	60.6	Year	45.0	14.3