National Weather ServiceMinnesotaFrost AdvisoryArchive to October 1, 2026
Frost Advisories in Minnesota
The National Weather Service issued 27 frost advisories for Minnesota in 2025 and 24 a year on average in 2008-2025; in 2021-2025 it had the 15th most of any state. 2026 through September: 41, 134% above the average of 18 for those months in 2008-2025. Northern Cook/Northern Lake was covered most often (108 times since 2008).
How many frost advisories does Minnesota get?
Every frost advisory that covered part of Minnesota. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 43 |
| 2025 | 27 |
| 2024 | 29 |
| 2023 | 19 |
| 2022 | 25 |
| 2021 | 27 |
| 2020 | 35 |
| 2019 | 20 |
| 2018 | 13 |
| 2017 | 19 |
| 2016 | 28 |
| 2015 | 26 |
| 2014 | 28 |
| 2013 | 21 |
| 2012 | 21 |
| 2011 | 23 |
| 2010 | 23 |
| 2009 | 19 |
| 2008 | 22 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Minnesota get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Minnesota?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Northern Cook/Northern Lake | 108 | 39 | October 2, 2026 |
| Central St. Louis | 106 | 37 | September 23, 2026 |
| North St. Louis | 106 | 34 | September 23, 2026 |
| Koochiching | 99 | 29 | September 23, 2026 |
| North Itasca | 91 | 24 | October 2, 2026 |
| Southern Cook/North Shore | 79 | 22 | May 22, 2026 |
| East Marshall | 74 | 18 | October 2, 2026 |
| South Itasca | 71 | 19 | October 2, 2026 |
| Southern Lake/North Shore | 71 | 18 | May 22, 2026 |
| Roseau | 70 | 18 | October 2, 2026 |
| Carlton/South St. Louis | 69 | 21 | September 22, 2026 |
| Pennington | 69 | 15 | October 2, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a frost advisory?
A frost advisory means frost is expected on clear, calm nights during the growing season, with temperatures a few degrees above freezing. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Minnesota.