When to plant in Pendleton, OR
USDA Zone 7aEverything below — frost dates, hardiness zone, and what to plant when in Pendleton, Oregon — is derived from the closest NOAA station with complete climate normals.
Zone 7a means many perennials and even some tender shrubs overwinter in Pendleton, while your frost dates still decide when annuals go out.
Frost probability
PENDLETON DWTN · 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 Pendleton’s own odds, recorded at PENDLETON DWTN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 20 | May 7 | Apr 24 | Sep 15 | Sep 29 | Oct 12 |
| 32°F | May 8 | Apr 22 | Apr 3 | Sep 27 | Oct 9 | Oct 26 |
| 28°F | Apr 21 | Mar 31 | Mar 10 | Oct 7 | Oct 24 | Nov 11 |
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 Pendleton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 3 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.
Pendleton planting FAQ
When is the last spring frost in Pendleton, OR?
Pendleton's average last spring frost falls near April 22 — 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 Pendleton, OR?
In Pendleton, the first 32°F freeze of fall lands around October 9 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Pendleton in?
Pendleton is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Pendleton?
There are roughly 170 frost-free days in Pendleton (a moderate growing season), running from the average last frost around April 22 to the first fall frost near October 9.
When should I plant tomatoes in Pendleton?
In Pendleton, start tomato seeds indoors around February 25–March 11, then transplant seedlings outdoors around April 29 once the danger of frost has passed.
Never miss a window in Pendleton
An email when it’s time to start seeds, transplant, and sow — timed to Pendleton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Hermiston · 40 km
- Walla Walla · 57 km
- Kennewick · 64 km
- La Grande · 69 km
- Pasco · 70 km
- Richland · 77 km
- West Richland · 83 km
- Grandview · 105 km
Frost dates recorded at PENDLETON DWTN, 2 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 Pendleton, OR — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00356541. Retrieved from https://blissgarden.com/oregon/pendleton.