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Green Bay weather in December

Weather in Green Bay: December

Average day temperature: 31.1°F
Average night temperature: 26.2°F
Sea water temperature: 36.4°F
Number of sunny days: 5 days
Day length: 8.8 - 9.1 hours
Number of rainy days: 0 days
Precipitation totals: 0.4 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
6
12
18
24
30
36
42
48
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 39°F. At the same time the lowest night temperature was 2°F. Daily and nightly averages during December were 29.9°F and 24.3°F.

Sea water temperature in Green Bay in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
27
30
33
36
39
42
45
48

The average sea water temperature in December of 2024 was 36.9°F. The highest and lowest sea temperatures during the month were 42.3°F and 32.2°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
16%
31%
53%

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, 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
2.3
1.1
1.2
1.5
1.7
1.3
1.6
1.1
1.2
1.5
1.7
1.3
1.6

Precipitation total value in Green Bay in December is 0.4 in. Other months of the year show relatively similar values.

Wind speed in December, 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
10.9
9.9
9.0
8.0
7.5
8.7
9.0
10.9
10.9
10.1
9.4
9.5
10.9
9.9
9.0
8.0
7.5
8.7
9.0
10.9
10.9
10.1
9.4

The average wind speed value in December is 9.5 mph

Average sunny hours
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
4.5
6.1
8.0
9.1
9.3
9.0
7.8
5.2
4.9
4.4
3.7
3.3
4.5
6.1
8.0
9.1
9.3
9.0
7.8
5.2
4.9
4.4
3.7

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 December is: 3.3.

Best time for vacation in Green Bay

Sunniest months:
August 16 days
September 14 days
July 12 days
Warmest months:
August 77.2 °F
July 77.2 °F
June 73.3 °F
Warmest sea temp:
July 74.7 °F
August 73.5 °F
September 68.3 °F
Coldest months:
January 24.4 °F
February 25.8 °F
December 31.1 °F
Rainiest months:
June 4 days
April 4 days
July 3 days
Windiest months:
April 10.9 mph
March 10.9 mph
November 10.9 mph

Green Bay on a weather map

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24 Hours Forecast
Green Bay
Local time: 14:38
April 05, saturday
1500
48°F
SE
14 mph
1800
46°F
SE
12 mph
2100
37°F
S
8 mph
April 06, sunday
0000
32°F
SE
5 mph
0300
28°F
SE
7 mph
0600
27°F
NE
6 mph
0900
36°F
E
8 mph
1200
48°F
E
9 mph
Units of measurement: °C / °F