Weather in Green Bay: January
 |
Average day temperature: | 24.4°F |
| Average night temperature: | 18.2°F | |
 |
Sea water temperature: | 32.4°F |
 |
Number of sunny days: | 5 days |
| Day length: | 8.9 - 9.8 hours | |
 |
Number of rainy days: | 0 days |
| Precipitation totals: | 0.4 in. | |
| more information | ||
forecast
| Green Bay |
temperature
| Green Bay |
Air temperature in January, °F
The highest day temperature during January of 2025 was 40°F. At the same time the lowest night temperature was -10°F. Daily and nightly averages during January were 22.4°F and 14.2°F.
Sea water temperature in Green Bay in January, °F
The average sea water temperature in January of 2025 was 32.2°F. The highest and lowest sea temperatures during the month were 32.7°F and 32.0°F.
Mostly all days in January are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Green Bay in January is 0.4 in. Other months of the year show relatively similar values.
The average wind speed value in January is 9.4 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 3.7.
Best time for vacation in Green Bay
Green Bay on a weather map
17 mph
18 mph
16 mph
14 mph
12 mph
12 mph
11 mph
12 mph
