Measurements:
°C
°F
Green Bay
52°F
N 19 mph
Feels like: 46°F
Precip: 0%
World Resorts USA Green Bay Weather January Weather in Green Bay

Green Bay Weather: January

Average Day Temperature: 21.6°F
Average Night Temperature: 14.7°F
Sea Water Temperature: 30.4°F
Number of Sunny Days: 5 days
Sunshine Hours: 8.9 - 9.8 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.4 in

Air Temperature in January, °F

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
-28
-17
-6
5
16
27
38
49
60
Day Temperature   
Night Temperature

The highest day temperature in January 2025 was 39°F. The lowest night temperature was -17°F. The average values for day and night temperatures during January were 19.4°F и 10.3°F respectivly.

Green Bay Water Sea Temperature in January, °F

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
26
28
30
32
34
36
38

The average sea surface temperature in January 2025 for Green Bay was 30.2°F. The maximum and minimum values were 30.0°F and 30.8°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
16%
26%
58%

Most of the days in January are gloomy but you can also expect sunny days.

Precipitation Totals in January, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.6
0.9
1.1
1.4
1.7
2.0

Precipitation total in January for Green Bay is 0.4 in. It makes january one of the least rainy months of the year.

Wind Speed in January, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.9
3.7
5.6
7.5
9.4
11.2
13.1

The average wind speed in January is 9.4 mph.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.6
3.2
4.8
6.4
8.0
9.6
11.2

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Green Bay in January is 3.4 hours.

Best Time to Visit Green Bay
The most sunny months:
August 16 days
September 14 days
July 12 days
The most warm months:
August 80.3 °F
July 80.2 °F
June 75.9 °F
Warmest sea temperature:
July 77.4 °F
August 76.2 °F
September 70.3 °F
The most cold months:
January 21.6 °F
February 23.1 °F
December 29.0 °F
The most rainy months:
June 4 days
April 4 days
July 3 days
The most windy months:
April 11 mph
March 11 mph
November 11 mph

Green Bay on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +62
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +70
Los Angeles +60
Miami +84
New York +62
Orlando +88
San Diego +64
San Francisco +56
Sarasota +86
Tampa +92
Washington +66
24 Hours Weather Forecast
Green Bay
Local time: 17:52
17 apr, thursday
1800 52°F
N
19 mph
2100 50°F
N
17 mph
18 apr, friday
0000 50°F
N
16 mph
0300 50°F
NE
14 mph
0600 52°F
NE
9 mph
0900 60°F
N
5 mph
1200 64°F
NE
3 mph
1500 58°F
SE
5 mph