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Green Bay, WI Weather


Green Bay, WI climate is mild during summer when temperatures tend to be in the 60's and extremely cold during winter when temperatures tend to be in the 10's.

The warmest month of the year is July with an average maximum temperature of 9.99 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 7.10 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.

The annual average precipitation at Green Bay is 9.99 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is August with an average rainfall of 3.77 Inches.

Weather Data

Normal Climate

Normal Temperatures

(GREEN BAY STRBL INTL AP Weather station, 6.07 miles from Green Bay)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 24.1 28.9 40.0 54.6 68.0 76.8 81.2 78.5 70.2 57.9 42.4 29.0 54.3
Mean °F 15.6 20.5 31.3 44.2 56.4 65.4 69.9 67.5 58.8 47.4 34.0 21.2 44.4
Min °F 7.1 12.1 22.6 33.9 44.7 54.0 58.6 56.5 47.5 36.9 25.6 13.3 34.4

Normal Precipitation

(GREEN BAY STRBL INTL AP Weather station, 6.07 miles from Green Bay)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 1.21 1.01 2.06 2.56 2.75 3.43 3.44 3.77 3.11 2.17 2.27 1.41 9.99