When to plant in Canby, OR
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Canby, Oregon — all computed from Canby's nearest NOAA weather station.
In zone 8b, Canby supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
N WILLAMETTE EXP STN · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Canby’s own odds, recorded at N WILLAMETTE EXP STN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 6 | Apr 17 | Mar 29 | Oct 11 | Oct 27 | Nov 15 |
| 32°F | Apr 10 | Mar 18 | Feb 22 | Oct 27 | Nov 13 | Dec 6 |
| 28°F | Mar 10 | Feb 13 | Dec 30 | Nov 9 | Dec 1 | Dec 31 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Canby, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Canby planting FAQ
When is the last spring frost in Canby, OR?
Canby's average last spring frost falls near March 18 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Canby, OR?
Expect Canby's first fall frost near November 13 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Canby in?
Canby is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Canby?
Canby has about 240 frost-free days — a long growing season — between the average last spring frost (March 18) and first fall frost (November 13).
When should I plant tomatoes in Canby?
For Canby, sow tomatoes indoors about January 21–February 4 and move the seedlings out around March 25, after the last spring frost.
Never miss a window in Canby
An email when it’s time to start seeds, transplant, and sow — timed to Canby’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Wilsonville · 8 km
- Oregon City · 11 km
- West Linn · 12 km
- Tualatin · 14 km
- Molalla · 15 km
- Gladstone · 15 km
- Sherwood · 16 km
- Lake Oswego · 17 km
Frost dates recorded at N WILLAMETTE EXP STN, 5 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Canby, OR — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00356151. Retrieved from https://blissgarden.com/oregon/canby.