View the ice-over and ice-out dates, and duration of ice cover, for Lake Wingra dating back to 1877.
Note: The data for Lake Wingra is incomplete, especially from the late 1800s through the mid 1960s.
Annual Duration of Ice Cover
Move your mouse over the chart to see specific data points. Click and drag to zoom in on the chart.
Tap anywhere in the chart to see specific data points. Pinch to zoom in or out on the chart. Rotating your device horizontally may make the chart easier to read.
Longest Duration
164 days
(1880-81)
Shortest Duration
63 days
(2023-24)
Average Duration
113 days
Five-Year Running Average
93 days