When to plant in Hollister, CA
USDA Zone 9bEverything below — frost dates, hardiness zone, and what to plant when in Hollister, California — is derived from the closest NOAA station with complete climate normals.
A generous ~285-day season lets Hollister gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. In zone 9b, frost is a minor factor for Hollister — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
HOLLISTER 2 · 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 Hollister’s own odds, recorded at HOLLISTER 2.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 18 | Mar 27 | Feb 23 | Oct 31 | Nov 15 | Dec 1 |
| 32°F | Mar 28 | Feb 19 | Jan 10 | Nov 12 | Dec 1 | Dec 25 |
| 28°F | Feb 28 | Jan 16 | Dec 19 | Nov 26 | Dec 14 | Jan 14 |
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 Hollister, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 22 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.
Hollister planting FAQ
When is the last spring frost in Hollister, CA?
Plan for the last spring frost in Hollister around February 19 (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 Hollister, CA?
The first fall frost in Hollister typically arrives around December 1 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Hollister in?
Hollister is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Hollister?
Hollister has about 285 frost-free days — a long growing season — between the average last spring frost (February 19) and first fall frost (December 1).
When should I plant tomatoes in Hollister?
For Hollister, sow tomatoes indoors about December 25–January 8 and move the seedlings out around February 26, after the last spring frost.
Never miss a window in Hollister
An email when it’s time to start seeds, transplant, and sow — timed to Hollister’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Prunedale · 23 km
- Gilroy · 24 km
- Salinas · 28 km
- Watsonville · 34 km
- Morgan Hill · 38 km
- Marina · 40 km
- Seaside · 45 km
- Soledad · 47 km
Frost dates recorded at HOLLISTER 2, 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 Hollister, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00044025. Retrieved from https://blissgarden.com/california/hollister.