Historical Weather in Green Bay, WI
See 55+ years of weather history for any date in Green Bay going back to 1970.
Part of Wisconsin weather history · Wisconsin temperature records
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Monthly Climate Averages
Historical temperature and precipitation averages for Green Bay, WI, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Green Bay, WI Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Green Bay, WI Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Green Bay, WI Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Growing Season & Frost in Green Bay, WI
Based on the dates the average overnight low reaches freezing (32°F / 0°C), from 50+ years of NOAA station data.
Hours of Daylight in Green Bay, WI
Day length across the year at 44.5°N latitude. Computed from solar geometry.
Best Time to Visit Green Bay, WI
Green Bay, WI has no months that meet our "pleasant" threshold — every season has tradeoffs.
Green Bay Temperature Records
- Record High: The hottest temperature ever recorded in Green Bay, WI is 103°F, set on July 13, 1995.
- Record Low: The coldest temperature ever recorded in Green Bay, WI is -28°F, set on January 15, 1972.
- Data Coverage: Based on 57 years of data from NOAA weather station: GREEN BAY.
All-Time Record High
All-Time Record Low
Monthly Temperature Records in Green Bay
| Month | Record High | Record Low |
|---|---|---|
| January | 53°F(2025) | -28°F(1972) |
| February | 70°F(2024) | -28°F(1996) |
| March | 84°F(2012) | -24°F(2014) |
| April | 89°F(1980) | 9°F(2018) |
| May | 97°F(2018) | 24°F(2020) |
| June | 98°F(1988) | 35°F(2025) |
| July | 103°F(1995) | 40°F(2007) |
| August | 99°F(2001) | 36°F(2004) |
| September | 94°F(2000) | 27°F(1974) |
| October | 88°F(2025) | 16°F(1988) |
| November | 75°F(2020) | -9°F(1976) |
| December | 65°F(2001) | -27°F(1983) |