Last frost date in Klamath Falls, Oregon
June 9
Average last frost in spring. In an early year (1 in 10) it's over by May 22; in a late year (1 in 10) it comes after June 26.
September 18
Average first frost in fall. 1 year in 10 it comes by September 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Klamath Falls International AP (USW00094236), 5.7 miles from Klamath Falls, elevation 4,084 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | May 22 | June 9 | June 26 |
| First frost in fall | Sept 4 | Sept 18 | Oct 1 |
An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.
Frost-free days in an average year: 99
Planting calendar for Klamath Falls
Fall planting
USDA dates for places whose average first freeze is about September 20 (Klamath Falls: September 18).
- Broccoli plantsMay 1 – June 15 (past for this year)
- Brussels sprouts plantsMay 1 – June 15 (past for this year)
- Cabbage plantsMay 1 – June 15 (past for this year)
- Cantaloupe (muskmelon)May 1 – June 15 (past for this year)
- Cauliflower plantsMay 1 – July 1 (past for this year)
- PotatoesMay 1 – June 15 (past for this year)
- WatermelonMay 1 – June 15 (past for this year)
- Celery and celeriac plantsMay 15 – July 1 (past for this year)
- Chervil and chivesMay 15 – June 15 (past for this year)
- Collards plantsMay 15 – June 15 (past for this year)
- ParsnipsMay 15 – June 15 (past for this year)
- Summer squashMay 15 – July 1 (past for this year)
- Witloof chicoryMay 15 – June 15 (past for this year)
- SalsifyMay 20 – June 20 (past for this year)
- Winter squashMay 20 – June 10 (past for this year)
- BeetsJune 1 – July 1 (past for this year)
- CarrotsJune 1 – July 1 (past for this year)
- Chinese cabbageJune 1 – July 1 (past for this year)
- CucumbersJune 1 – 15 (past for this year)
- DandelionJune 1 – July 1 (past for this year)
- Florence fennelJune 1 – July 1 (past for this year)
- Garden peasJune 1 – July 15 (past for this year)
- Head lettuce plantsJune 1 – July 15 (past for this year)
- KaleJune 1 – July 1 (past for this year)
- KohlrabiJune 1 – July 15 (past for this year)
- Leaf lettuceJune 1 – Aug 1 (past for this year)
- Mustard greensJune 1 – Aug 1 (past for this year)
- OkraJune 1 – 20 (past for this year)
- ParsleyJune 1 – July 1 (past for this year)
- Peppers plantsJune 1 – 20 (past for this year)
- RadishesJune 1 – Aug 15 (past for this year)
- RutabagaJune 1 – July 1 (past for this year)
- Snap beansJune 1 – July 1 (past for this year)
- SorrelJune 1 – July 1 (past for this year)
- SpinachJune 1 – Aug 1 (past for this year)
- Sweet cornJune 1 – July 1 (past for this year)
- Swiss chardJune 1 – July 1 (past for this year)
- TomatoesJune 1 – 20 (past for this year)
- TurnipsJune 1 – July 15 (past for this year)
- Corn saladJune 15 – Aug 1 (past for this year)
- EndiveJune 15 – July 15 (past for this year)
- Upland cressJune 15 – Aug 1 (past for this year)
- Rhubarb plantsSept 15 – Nov 1Now
USDA lists garlic, horseradish, leeks, onion plants, onion seed, onion sets, shallots as generally spring-planted here.
Spring planting
USDA dates for places whose average last freeze is about June 10 (Klamath Falls: June 9).
- DandelionMay 1 – 30
- LeeksMay 1 – 15
- SpinachMay 1 – June 15
- Garden peasMay 10 – June 15
- Onion plants plantsMay 10 – June 10
- Onion seedMay 10 – June 10
- Onion setsMay 10 – June 10
- ShallotsMay 10 – June 1
- Asparagus plantsMay 15 – June 1
- BeetsMay 15 – June 15
- Chervil and chivesMay 15 – June 1
- Corn saladMay 15 – June 15
- EndiveMay 15 – June 1
- Florence fennelMay 15 – June 1
- GarlicMay 15 – June 1
- Horseradish plantsMay 15 – June 1
- KaleMay 15 – June 1
- KohlrabiMay 15 – June 1
- PotatoesMay 15 – June 1
- RadishesMay 15 – June 1
- Rhubarb plantsMay 15 – June 1
- TurnipsMay 15 – June 15
- Upland cressMay 15 – June 15
- Broccoli plantsMay 20 – June 10
- Brussels sprouts plantsMay 20 – June 10
- Cabbage plantsMay 20 – June 1
- CarrotsMay 20 – June 1
- Chinese cabbageMay 20 – June 1
- Collards plantsMay 20 – June 1
- Head lettuce plantsMay 20 – June 30
- Leaf lettuceMay 20 – June 30
- Mustard greensMay 20 – June 30
- ParsleyMay 20 – June 10
- ParsnipsMay 20 – June 10
- RutabagaMay 20 – June 1
- SalsifyMay 20 – June 1
- SorrelMay 20 – June 10
- Cauliflower plantsJune 1 – 15
- Celery and celeriac plantsJune 1 – 15
- Swiss chardJune 1 – 15
- Witloof chicoryJune 1 – 15
- Summer squashJune 10 – 20
- TomatoesJune 15 – 30
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.
Nearby in Oregon
- Ashland 47 mi · last frost May 6
- Medford 55 mi · last frost Apr 8
- Central Point 59 mi · last frost Apr 8
- Grants Pass 81 mi · last frost Apr 8
- Roseburg 106 mi · last frost Mar 23