View long-term temperature data for Green Bay, Wisconsin. The annual average temperature in Green Bay is 45.7 degrees Fahrenheit, the annual average high temperature is 54.7 degrees, and the annual average low temperature is 36.7 degrees (averages are based on the 1991-2020 climate normals). Notable records for Green Bay include:
- Hottest day (record high temperature): 104 degrees (July 13, 1936)
- Coldest day (record low temperature): -36 degrees (January 21, 1888)
- Warmest annual average temperature: 49.4 degrees (2012, 1931)
- Coldest annual average temperature: 40.2 degrees (1917)
Daily and Annual Temperatures
View daily temperatures for Green Bay, Wisconsin, from 1886 to the present day, using combined data from the stations at the Green Bay weather bureau office (September 1886–August 15, 1949) and Austin Straubel International Airport (August 16, 1949–present). This chart shows the observed high and low temperatures compared with the normal highs and lows. The bumpy lines are the observed temperatures; the smooth lines are the normal temperatures.
Click and drag anywhere on the chart to zoom in on specific data points.
Download the complete record of temperature data (CSV)
The file contains daily average, high, and low temperatures.