When Does Woman Lake Freeze? Typical Ice-In Dec 10
Woman Lake in Cass County, Minnesota usually freezes over around Dec 10, based on Minnesota DNR ice observations recorded between 2022-2025. These are typical dates across many winters, not a forecast — individual years swing by weeks in either direction.
Ice record for Woman Lake
| Typical freeze-up (ice-in) | Dec 10 |
| Earliest freeze-up on record | Nov 27, 2022 |
| Latest freeze-up on record | Dec 20, 2023 |
| Winters observed | 4 |
| Location | Cass County, Minnesota |
These are dates, not an ice-safety reading
A typical freeze-up date tells you when Woman Lake has usually iced over — it does not tell you the ice is safe, and we hold no thickness measurement for this or any lake. The Minnesota DNR is explicit that no ice is ever completely safe: thickness varies across a single lake, and current, springs, aerators, and insulating snow all weaken it. Ice that held a truck last week may not hold a person today.
Read the ice-thickness guidelines before going out, and check current conditions with the Minnesota DNR ice-safety page and local bait shops, which track conditions lake by lake.
How much the timing varies
Freeze-up has ranged from Nov 27, 2022 to Dec 20, 2023. That year-to-year swing is why a median date is a planning tool, not a schedule. Freeze-up is driven by accumulated cold after the lake turns over in fall; ice-out by late-winter air temperature, sun angle, and how much snow sits on top of the ice reflecting it. The full nutrient and algae breakdown for Woman Lake is on the lake report.
Source: Minnesota DNR Climate Office ice-in / ice-out records, observations from 2022-2025.
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