When Does Aaron Lake Freeze? Typical Ice-In Nov 22, Ice-Out Apr 25
Aaron Lake in Douglas County, Minnesota usually freezes over around Nov 22, and usually has ice-out around Apr 25, based on Minnesota DNR ice observations recorded between 2008-2024. That works out to roughly 211 days of open water a year. These are typical dates across many winters, not a forecast — individual years swing by weeks in either direction.
Ice record for Aaron Lake
| Typical freeze-up (ice-in) | Nov 22 |
| Typical ice-out | Apr 25 |
| Earliest freeze-up on record | Nov 18, 2022 |
| Latest freeze-up on record | Dec 7, 2021 |
| Earliest ice-out on record | Mar 7, 2024 |
| Latest ice-out on record | Apr 30, 2008 |
| Open-water season | ~211 days |
| Winters observed | 11 |
| Location | Douglas County, Minnesota |
These are dates, not an ice-safety reading
A typical freeze-up date tells you when Aaron 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
Ice-out on Aaron Lake has landed as early as Mar 7, 2024 and as late as Apr 30, 2008 — a spread of weeks around the Apr 25 median. Freeze-up has ranged from Nov 18, 2022 to Dec 7, 2021. 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 Aaron Lake is on the lake report.
Source: Minnesota DNR Climate Office ice-in / ice-out records, observations from 2008-2024.
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