It’s official – Lake Mendota freezes over!
Temperatures below the freezing mark, combined with cold water, helped Lake Mendota officially freeze in the early morning hours on Friday, January 7, 2022. The official declaration comes from the Wisconsin State Climatology Office. Lake Mendota, the largest lake in the Yahara Watershed, froze 23 days shy of January 30th. The latest ice-on date ever declared was on January 30th, 1932.