Last frost date in Newberg, Oregon
March 21
Average last frost in spring. In an early year (1 in 10) it's over by February 23; in a late year (1 in 10) it comes after April 19.
November 22
Average first frost in fall. 1 year in 10 it comes by November 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Rex 1 S (USC00357127), 2.3 miles from Newberg, elevation 515 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Feb 23 | Mar 21 | Apr 19 |
| First frost in fall | Nov 4 | Nov 22 | Dec 12 |
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: 241
Planting calendar for Newberg
Fall planting
USDA dates for places whose average first freeze is about November 20 (Newberg: November 22).
- CucumbersJune 1 – Aug 15 (past for this year)
- Eggplant plantsJune 1 – Aug 1 (past for this year)
- New Zealand spinachJune 1 – Aug 15 (past for this year)
- OkraJune 1 – Sept 10 (past for this year)
- Peppers plantsJune 1 – Aug 15 (past for this year)
- SoybeansJune 1 – July 30 (past for this year)
- Summer squashJune 1 – Aug 20 (past for this year)
- Sweet cornJune 1 – Sept 1 (past for this year)
- Sweet potatoesJune 1 – July 1 (past for this year)
- Swiss chardJune 1 – Oct 1 (past for this year)
- TomatoesJune 1 – Aug 1 (past for this year)
- Black-eyed peasJuly 1 – Sept 1 (past for this year)
- Snap beansJuly 1 – Sept 10 (past for this year)
- Winter squashJuly 1 – Aug 1 (past for this year)
- Celery and celeriac plantsJuly 15 – Sept 1 (past for this year)
- Lima beansJuly 15 – Sept 1 (past for this year)
- SalsifyJuly 15 – Aug 15 (past for this year)
- Witloof chicoryJuly 20 – Sept 1 (past for this year)
- Broccoli plantsAug 1 – Sept 15 (past for this year)
- Brussels sprouts plantsAug 1 – Sept 15 (past for this year)
- Cauliflower plantsAug 1 – Sept 15 (past for this year)
- ParsnipsAug 1 – Sept 1 (past for this year)
- RutabagaAug 1 – Sept 1 (past for this year)
- PotatoesAug 10 – Sept 15 (past for this year)
- Florence fennelAug 15 – Sept 15 (past for this year)
- GarlicAug 15 – Oct 1 (past for this year)
- KaleAug 15 – Oct 15 (past for this year)
- ShallotsAug 15 – Oct 1 (past for this year)
- SorrelAug 15 – Oct 15 (past for this year)
- Collards plantsAug 25 – Nov 1Now
- BeetsSept 1 – Dec 1Now
- Cabbage plantsSept 1 – Dec 1Now
- CarrotsSept 1 – Nov 1Now
- Chinese cabbageSept 1 – Oct 15 (past for this year)
- DandelionSept 1 – Nov 1Now
- EndiveSept 1 – Oct 1 (past for this year)
- Head lettuce plantsSept 1 – Nov 1Now
- KohlrabiSept 1 – Oct 15 (past for this year)
- Leaf lettuceSept 1 – Nov 1Now
- LeeksSept 1 – Nov 1Now
- Mustard greensSept 1 – Dec 1Now
- Onion seedSept 1 – Nov 1Now
- ParsleySept 1 – Dec 31Now
- RadishesSept 1 – Dec 1Now
- TurnipsSept 1 – Nov 15Now
- Corn saladOct 1 – Dec 1Now
- Garden peasOct 1 – Dec 1Now
- Onion plants plantsOct 1 – Dec 31Now
- SpinachOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- 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 March 20 (Newberg: March 21).
- Corn saladJan 1 – Mar 15
- RutabagaJan 15 – Mar 1
- SpinachJan 15 – Mar 15
- RadishesJan 20 – May 1
- Asparagus plantsFeb 1 – Mar 10
- Cabbage plantsFeb 1 – Mar 1
- Garden peasFeb 1 – Mar 15
- GarlicFeb 1 – Mar 1
- Leaf lettuceFeb 1 – Apr 1
- LeeksFeb 1 – Mar 1
- Onion setsFeb 1 – Mar 20
- ShallotsFeb 1 – Mar 10
- Cauliflower plantsFeb 10 – Mar 10
- Chervil and chivesFeb 10 – Mar 10
- DandelionFeb 10 – Mar 10
- Onion plants plantsFeb 10 – Mar 10
- Onion seedFeb 10 – Mar 10
- PotatoesFeb 10 – Mar 15
- SorrelFeb 10 – Mar 20
- TurnipsFeb 10 – Mar 10
- BeetsFeb 15 – May 15
- Broccoli plantsFeb 15 – Mar 15
- Brussels sprouts plantsFeb 15 – Mar 15
- CarrotsFeb 15 – Mar 20
- Collards plantsFeb 15 – May 1
- Head lettuce plantsFeb 15 – Mar 10
- ParsleyFeb 15 – Mar 15
- ParsnipsFeb 15 – Mar 15
- SalsifyFeb 15 – Mar 1
- KaleFeb 20 – Mar 10
- KohlrabiFeb 20 – Mar 10
- Mustard greensFeb 20 – Apr 1
- Swiss chardFeb 20 – May 15
- Upland cressFeb 20 – Mar 15
- Celery and celeriac plantsMar 1 – Apr 1
- EndiveMar 1 – Apr 1
- Florence fennelMar 1 – Apr 1
- Snap beansMar 15 – May 25
- Sweet cornMar 15 – May 1
- Black-eyed peasApr 1 – July 1
- Cantaloupe (muskmelon)Apr 1 – May 1
- CucumbersApr 1 – May 1
- Eggplant plantsApr 1 – May 1
- Lima beansApr 1 – June 15
- New Zealand spinachApr 1 – May 15
- OkraApr 1 – June 15
- Summer squashApr 1 – May 15
- TomatoesApr 1 – May 20
- WatermelonApr 1 – May 1
- Peppers plantsApr 10 – June 1
- SoybeansApr 10 – June 30
- Sweet potatoesApr 10 – June 1
- Witloof chicoryJune 1 – July 1
USDA lists chinese cabbage 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
- Sherwood 7 mi · last frost Mar 21
- Wilsonville 9 mi · last frost Mar 18
- Tualatin 10 mi · last frost Apr 1
- Tigard 12 mi · last frost Apr 1
- Woodburn 12 mi · last frost Mar 16