National Weather ServiceOregonFrost AdvisoryArchive to October 1, 2026
Frost Advisories in Oregon
The National Weather Service issued 20 frost advisories for Oregon in 2025 and 31 a year on average in 2008-2025; in 2021-2025 it had the 18th most of any state. 2026 through September: 18, 7% below the average of 19 for those months in 2008-2025. South Central Oregon Coast was covered most often (225 times since 2008).
How many frost advisories does Oregon get?
Every frost advisory that covered part of Oregon. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 18 |
| 2025 | 20 |
| 2024 | 25 |
| 2023 | 17 |
| 2022 | 23 |
| 2021 | 14 |
| 2020 | 36 |
| 2019 | 33 |
| 2018 | 18 |
| 2017 | 31 |
| 2016 | 22 |
| 2015 | 26 |
| 2014 | 20 |
| 2013 | 65 |
| 2012 | 49 |
| 2011 | 50 |
| 2010 | 40 |
| 2009 | 42 |
| 2008 | 32 |
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 Oregon 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 Oregon?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| South Central Oregon Coast | 225 | 19 | April 17, 2026 |
| Curry County Coast | 148 | 7 | November 30, 2024 |
| Eastern Curry County and Josephine County | 144 | 3 | April 16, 2026 |
| Jackson County | 144 | 4 | April 16, 2026 |
| Klamath Basin | 116 | 12 | September 8, 2026 |
| Central and Eastern Lake County | 102 | 11 | September 8, 2026 |
| Northern and Eastern Klamath County and Western Lake County | 101 | 11 | September 8, 2026 |
| Central Douglas County | 90 | 5 | April 17, 2026 |
| Upper Hood River Valley | 38 | 27 | April 29, 2026 |
| Eastern Douglas County Foothills | 21 | 0 | October 27, 2011 |
| Greater Portland Metro Area | 21 | 2 | October 27, 2023 |
| North Oregon Coast Range Lowlands | 21 | 21 | April 17, 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 Oregon.