The Wisconsin State Climatology Office keeps records of ice-over and ice-out dates for Mendota, Monona and Wingra back to the mid-19th century, based on observations by various people, including those at Washburn Observatory at UW–Madison.
The Wisconsin State Climatology Office keeps records of ice-over and ice-out dates for Mendota, Monona and Wingra back to the mid-19th century, based on observations by various people, including those at Washburn Observatory at UW–Madison.