Green Bay Weather: December
 |
Average Day Temperature: | 28.0°F |
|
Average Night Temperature: | 22.3°F |
|
Sea Water Temperature: | 34.7°F |
|
Number of Sunny Days: | 6 days |
| Sunshine Hours: | 8.8 - 9.1 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.4 in | |
| detailed information | ||
forecast
| Green Bay |
Temperature
| Green Bay |
Air Temperature in December, °F
The highest day temperature in December 2025 was 46°F. The lowest night temperature was -9°F. The average values for day and night temperatures during December were 22.8°F и 15.6°F respectivly.
Green Bay Water Sea Temperature in December, °F
The average sea surface temperature in December 2025 for Green Bay was 33.6°F. The maximum and minimum values were 29.6°F and 37.4°F respectively.
Most of the days in December are gloomy but you can also expect sunny days.
Precipitation Totals in December, in
Precipitation total in December for Green Bay is 0.4 in. It makes december one of the least rainy months of the year.
The average wind speed in December is 9.7 mph.
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 December is 3.7 hours.
Green Bay on the Weather Map
| Boston |  |
+94 |
| Chicago | |
+82 |
| Hawaii |  |
+82 |
| Houston | |
+106 |
| Las Vegas | |
+124 |
| Los Angeles | |
+92 |
| Maui | |
+78 |
| Miami | |
+92 |
| Myrtle Beach |  |
+84 |
| New York | |
+84 |
| San Diego | |
+80 |
| San Francisco | |
+62 |
| Santa Monica | |
+80 |
| Sarasota | |
+92 |
| Washington | |
+88 |
| 1800 |  |
76°F | NE 12 mph |
| 2100 |  |
68°F | NE 9 mph |
| 0000 | |
60°F | NE 7 mph |
| 0300 | |
56°F | E 3 mph |
| 0600 | |
56°F | E 4 mph |
| 0900 | |
70°F | E 2 mph |
| 1200 | |
82°F | W 1 mph |
| 1500 | |
86°F | NW 1 mph |