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.
This station is also the nearest one for Sherwood, so its frost dates are the same as Newberg's.
| 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 |
Frost-free days in an average year: 241
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 21 | Nov 3 |
| Frost (32°F) | Every year | Mar 21 | Nov 22 |
| Hard freeze (28°F) | 10 years in 10 | Feb 15 | Dec 10 |
Nights at 32°F or colder in an average year: 43
What to plant now in Newberg
- Collards plantsAug 25 – Nov 1Now
- BeetsSept 1 – Dec 1Now
- Cabbage plantsSept 1 – Dec 1Now
- CarrotsSept 1 – Nov 1Now
- DandelionSept 1 – Nov 1Now
- Head lettuce plantsSept 1 – Nov 1Now
- 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
- Spring planting calendar for an average last frost around March 20 Newberg: March 21
- Fall planting calendar for an average first frost around November 20 Newberg: November 22
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Oregon
- Wilsonville 9 mi · last frost Mar 18
- Woodburn 12 mi · last frost Mar 16
- McMinnville 13 mi · last frost Apr 5
- Beaverton 14 mi · last frost Apr 1
- Lake Oswego 15 mi · last frost Mar 18
Updated