When Does Pomme de Terre Lake Freeze? Typical Ice-In Nov 6, Ice-Out Apr 10
Pomme de Terre Lake in Grant County, Minnesota usually freezes over around Nov 6, and usually has ice-out around Apr 10, based on Minnesota DNR ice observations recorded between 2002-2015. That works out to roughly 210 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 Pomme de Terre Lake
| Typical freeze-up (ice-in) | Nov 6 |
| Typical ice-out | Apr 10 |
| Earliest freeze-up on record | Nov 3, 2002 |
| Latest freeze-up on record | Nov 21, 2003 |
| Earliest ice-out on record | Apr 6, 2004 |
| Latest ice-out on record | Apr 13, 2015 |
| Open-water season | ~210 days |
| Winters observed | 7 |
| Location | Grant County, Minnesota |
These are dates, not an ice-safety reading
A typical freeze-up date tells you when Pomme de Terre 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 Pomme de Terre Lake has landed as early as Apr 6, 2004 and as late as Apr 13, 2015 — a spread of weeks around the Apr 10 median. Freeze-up has ranged from Nov 3, 2002 to Nov 21, 2003. 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 Pomme de Terre Lake is on the lake report.
Source: Minnesota DNR Climate Office ice-in / ice-out records, observations from 2002-2015.
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