Frost dates across Oregon
Typical last spring frost, first fall frost, and USDA zone for 15 Oregon cities, from 30-year NOAA climate normals. Every date is a 50 percent odds line, not a promise. Pick a city for the full frost window and what is plantable there now.
Not on the list? Any Oregon ZIP works.
| City | Last spring frost | First fall frost | Season length | Zone |
|---|---|---|---|---|
| Portland | Feb 25 | Dec 1 | about 279 days | 9a |
| Eugene | Apr 11 | Oct 23 | about 195 days | 8b |
| Salem | Apr 3 | Nov 1 | about 212 days | 8b |
| Gresham | Mar 16 | Nov 20 | about 249 days | 8b |
| Bend | Jun 6 | Sep 20 | about 106 days | 6b |
| Medford | Apr 8 | Oct 29 | about 204 days | 8b |
| Roseburg | Mar 19 | Nov 20 | about 246 days | 8b |
| Klamath Falls | Jun 9 | Sep 18 | about 101 days | 6b |
| Hermiston | Apr 26 | Oct 10 | about 167 days | 7b |
| The Dalles | Apr 14 | Oct 23 | about 192 days | 7b |
| La Grande | May 6 | Oct 1 | about 148 days | 6b |
| Ontario | Apr 22 | Oct 9 | about 170 days | 7a |
| North Bend | Feb 21 | Dec 9 | about 291 days | 9a |
| Newport | Mar 21 | Nov 27 | about 251 days | 9b |
| Astoria | Mar 30 | Nov 18 | about 233 days | 8b |
Row & Bed is a plant reference built around your garden: your zone, your frost dates, your forecast, and a cited page for every variety in your beds.
Set up your garden