Last frost date in Coos Bay, Oregon
February 21
Average last frost in spring. In an early year (1 in 10) it's over by December 31; in a late year (1 in 10) it comes after March 25.
December 9
Average first frost in fall. 1 year in 10 it comes by November 12.
A 32°F night happens here about 10 years in 10; in those years these are the usual dates.
Source: NOAA U.S. Climate Normals 1991–2020, station North Bend Rgnl AP (USW00024284), 2.3 miles from Coos Bay, elevation 17 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Dec 31 | Feb 21 | Mar 25 |
| First frost in fall | Nov 12 | Dec 9 | Jan 28 |
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: 294
Planting calendar for Coos Bay
Fall planting
USDA dates for places whose average first freeze is about December 10 (Coos Bay: December 9).
- SoybeansJune 1 – July 30 (past for this year)
- Summer squashJune 1 – Sept 15 (past for this year)
- Sweet potatoesJune 1 – July 1 (past for this year)
- Swiss chardJune 1 – Dec 1Now
- Black-eyed peasJuly 1 – Sept 20 (past for this year)
- Broccoli plantsAug 1 – Nov 1Now
- Brussels sprouts plantsAug 1 – Nov 1Now
- Eggplant plantsAug 1 – Sept 30 (past for this year)
- OkraAug 1 – Oct 1 (past for this year)
- PotatoesAug 1 – Sept 15 (past for this year)
- RadishesAug 1 – Sept 15 (past for this year)
- Winter squashAug 1 – Sept 1 (past for this year)
- CucumbersAug 15 – Oct 1 (past for this year)
- Peppers plantsAug 15 – Oct 1 (past for this year)
- SalsifyAug 15 – Oct 15 (past for this year)
- TomatoesAug 15 – Oct 1 (past for this year)
- Witloof chicoryAug 15 – Oct 15 (past for this year)
- BeetsSept 1 – Dec 31Now
- Cabbage plantsSept 1 – Dec 31Now
- Cauliflower plantsSept 1 – Oct 20 (past for this year)
- Celery and celeriac plantsSept 1 – Dec 31Now
- Chinese cabbageSept 1 – Nov 15Now
- Collards plantsSept 1 – Dec 31Now
- EndiveSept 1 – Dec 31Now
- Florence fennelSept 1 – Dec 1Now
- KaleSept 1 – Dec 31Now
- LeeksSept 1 – Nov 1Now
- Lima beansSept 1 – 30 (past for this year)
- Mustard greensSept 1 – Dec 1Now
- Onion seedSept 1 – Nov 1Now
- ParsnipsSept 1 – Dec 1Now
- Snap beansSept 1 – 30 (past for this year)
- SorrelSept 1 – Dec 15Now
- CarrotsSept 15 – Dec 1Now
- GarlicSept 15 – Nov 15Now
- Head lettuce plantsSept 15 – Dec 31Now
- KohlrabiSept 15 – Dec 31Now
- Leaf lettuceSept 15 – Dec 31Now
- ParsleySept 15 – Dec 31Now
- ShallotsSept 15 – Nov 1Now
- Corn saladOct 1 – Dec 31Now
- DandelionOct 1 – Dec 31Now
- Garden peasOct 1 – Dec 31Now
- Onion plants plantsOct 1 – Dec 31Now
- RutabagaOct 1 – Nov 15Now
- SpinachOct 1 – Dec 31Now
- TurnipsOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 31Now
- Chervil and chivesNov 1 – Dec 31Soon
- Onion setsNov 1 – Dec 31Soon
USDA lists horseradish as generally spring-planted here.
Spring planting
USDA dates for places whose average last freeze is about February 18 (Coos Bay: February 21).
- Cabbage plantsJan 1 – Feb 25
- Chervil and chivesJan 1 – Feb 1
- Collards plantsJan 1 – Mar 15
- Corn saladJan 1 – Mar 15
- Garden peasJan 1 – Mar 1
- Head lettuce plantsJan 1 – Feb 1
- Leaf lettuceJan 1 – Mar 15
- LeeksJan 1 – Feb 15
- Onion plants plantsJan 1 – 15
- Onion seedJan 1 – 15
- Onion setsJan 1 – 15
- ParsleyJan 1 – 30
- ParsnipsJan 1 – Feb 1
- RadishesJan 1 – Apr 1
- ShallotsJan 1 – Feb 20
- SpinachJan 1 – Mar 1
- Cauliflower plantsJan 10 – Feb 10
- TurnipsJan 10 – Mar 1
- Broccoli plantsJan 15 – Feb 15
- Brussels sprouts plantsJan 15 – Feb 15
- CarrotsJan 15 – Mar 1
- DandelionJan 15 – Feb 15
- EndiveJan 15 – Mar 1
- Florence fennelJan 15 – Mar 1
- PotatoesJan 15 – Mar 1
- SalsifyJan 15 – Feb 20
- SorrelJan 15 – Mar 1
- Upland cressJan 15 – Feb 15
- BeetsJan 20 – Apr 1
- Celery and celeriac plantsJan 20 – Feb 20
- KaleJan 20 – Feb 10
- KohlrabiJan 20 – Feb 10
- Swiss chardJan 20 – Apr 15
- Cantaloupe (muskmelon)Feb 15 – Apr 15
- CucumbersFeb 15 – Apr 15
- Mustard greensFeb 15 – Apr 15
- WatermelonFeb 15 – Apr 15
- Eggplant plantsFeb 20 – Apr 1
- Sweet cornFeb 20 – Apr 15
- Black-eyed peasMar 1 – June 15
- Lima beansMar 1 – May 1
- New Zealand spinachMar 1 – Apr 15
- OkraMar 1 – June 1
- Peppers plantsMar 1 – May 1
- Snap beansMar 1 – May 1
- Summer squashMar 1 – Apr 15
- TomatoesMar 1 – Apr 20
- SoybeansMar 10 – June 30
- Sweet potatoesMar 20 – June 1
USDA lists chinese cabbage, garlic as generally fall-planted here.
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
- North Bend 2 mi · last frost Feb 21
- Roseburg 46 mi · last frost Mar 23
- Cottage Grove 65 mi · last frost Apr 24
- Eugene 73 mi · last frost Apr 11
- Springfield 78 mi · last frost Apr 11