When Does Round Lake Freeze? Typical Ice-In Nov 28, Ice-Out Apr 19
Round Lake in Aitkin County, Minnesota usually freezes over around Nov 28, and usually has ice-out around Apr 19, based on Minnesota DNR ice observations recorded between 2012-2015. That works out to roughly 223 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 Round Lake
| Typical freeze-up (ice-in) | Nov 28 |
| Typical ice-out | Apr 19 |
| Earliest freeze-up on record | Nov 15, 2014 |
| Latest freeze-up on record | Dec 20, 2015 |
| Earliest ice-out on record | Mar 24, 2012 |
| Latest ice-out on record | May 13, 2013 |
| Open-water season | ~223 days |
| Winters observed | 29 |
| Location | Aitkin County, Minnesota |
These are dates, not an ice-safety reading
A typical freeze-up date tells you when Round 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 Round Lake has landed as early as Mar 24, 2012 and as late as May 13, 2013 — a spread of weeks around the Apr 19 median. Freeze-up has ranged from Nov 15, 2014 to Dec 20, 2015. 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 Round Lake is on the lake report.
Source: Minnesota DNR Climate Office ice-in / ice-out records, observations from 2012-2015.
Stays via Stay22
Where to stay near Round Lake
Compare cabins, hotels, and vacation rentals near Round Lake in Aitkin County, Minnesota. Live availability and prices for your nights. Switch the map to Satellite to see how close each stay is to the water.
Top-rated places to stay near Round Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Round Lake?
Get lake water-quality updates plus the best cabin & lodging deals near Round Lake — straight to your inbox. No spam, unsubscribe anytime.
Watch Round Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.