When to plant in Spokane, WA
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Spokane, Washington — all computed from Spokane's nearest NOAA weather station.
Zone 7a means many perennials and even some tender shrubs overwinter in Spokane, while your frost dates still decide when annuals go out.
The average last spring frost in Spokane is now 7 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
SPOKANE FELTS FLD · 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 Spokane’s own odds, recorded at SPOKANE FELTS FLD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 25 | May 9 | Apr 27 | Sep 19 | Oct 1 | Oct 15 |
| 32°F | May 10 | Apr 26 | Apr 10 | Sep 30 | Oct 15 | Oct 31 |
| 28°F | Apr 26 | Apr 4 | Mar 16 | Oct 11 | Oct 27 | Nov 13 |
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 Spokane, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 15 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.
Spokane planting FAQ
When is the last spring frost in Spokane, WA?
On average, the last spring frost in Spokane is around April 26 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Spokane, WA?
Expect Spokane's first fall frost near October 15 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Spokane in?
Spokane 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 Spokane?
There are roughly 172 frost-free days in Spokane (a moderate growing season), running from the average last frost around April 26 to the first fall frost near October 15.
When should I plant tomatoes in Spokane?
In Spokane, start tomato seeds indoors around March 1–March 15, then transplant seedlings outdoors around May 3 once the danger of frost has passed.
Never miss a window in Spokane
An email when it’s time to start seeds, transplant, and sow — timed to Spokane’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Airway Heights · 11 km
- Spokane Valley · 15 km
- Cheney · 22 km
- Liberty Lake · 25 km
- Post Falls · 37 km
- Rathdrum · 43 km
- Coeur d'Alene · 48 km
- Hayden · 49 km
Frost dates recorded at SPOKANE FELTS FLD, 9 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 Spokane, WA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00094176. Retrieved from https://blissgarden.com/washington/spokane.