Ice-off tracker

When the ice goes off your lake

Every lake here is measured against its own 65 winters, not against a regional average. You get the day it usually freezes, the middle day the ice goes off, the earliest and latest the model has seen, and where this winter is running against all of them. Elevation is most of the story: Skull Lake at 53 m goes off around 15 Jan, and Nickel Plate Lake at 1,846 m around 18 Jun.

When the ice usually goes off

436 of the 470 lakes modelled so far carry dates. The other 34 are the ones the model leaves open through the winter, and they sit at the end of the table reading open water, all winter. Sort by any heading, or narrow it to a region or a height band.

The other two pages on this subject: the open water report is the lakes this model leaves open all winter, and why lakes winterkill is what a long cap of ice does to the fish underneath it.

Air temperature from the ERA5 reanalysis and the forecast, both via Open-Meteo. Nothing on this page tells you whether ice will hold you. Check locally, in person, every time.