View Wisconsin statewide average temperatures from the last 12 months. These charts show comparisons with the 1991-2020 climate normals and departures from normal.
The data used in these plots are from NOAA’s monthly U.S. climate divisional database (NClimDiv).
Download spreadsheets with expanded tabular data, which include statewide and divisional monthly temperatures dating back to 1895 and seasonal averages.
The preliminary data for September 2025 were obtained from the Applied Climate Information System (ACIS) since the National Centers for Environmental Information (NCEI) currently is not posting data because of the government shutdown.