When to plant in Placerville, CA
USDA Zone 9bEverything below — frost dates, hardiness zone, and what to plant when in Placerville, California — is derived from the closest NOAA station with complete climate normals.
Zone 9b is warm enough that Placerville can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average last spring frost in Placerville is now 13 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
PLACERVILLE · 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 Placerville’s own odds, recorded at PLACERVILLE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 14 | Apr 23 | Apr 6 | Oct 17 | Nov 6 | Nov 22 |
| 32°F | Apr 23 | Mar 31 | Feb 24 | Nov 1 | Nov 21 | Dec 7 |
| 28°F | Mar 21 | Feb 15 | Jan 14 | Nov 19 | Dec 5 | Jan 1 |
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 Placerville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 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.
Placerville planting FAQ
When is the last spring frost in Placerville, CA?
Plan for the last spring frost in Placerville around March 31 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Placerville, CA?
In Placerville, the first 32°F freeze of fall lands around November 21 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Placerville in?
Placerville is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Placerville?
There are roughly 235 frost-free days in Placerville (a long growing season), running from the average last frost around March 31 to the first fall frost near November 21.
When should I plant tomatoes in Placerville?
In Placerville, start tomato seeds indoors around February 3–February 17, then transplant seedlings outdoors around April 7 once the danger of frost has passed.
Never miss a window in Placerville
An email when it’s time to start seeds, transplant, and sow — timed to Placerville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Diamond Springs · 6 km
- Cameron Park · 18 km
- El Dorado Hills · 23 km
- Auburn · 30 km
- Folsom · 31 km
- Granite Bay · 32 km
- North Auburn · 33 km
- Orangevale · 37 km
Frost dates recorded at PLACERVILLE, 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 Placerville, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00046960. Retrieved from https://blissgarden.com/california/placerville.