When to plant in Coalinga, CA
USDA Zone 9bCoalinga, California frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
With about 289 frost-free days, Coalinga supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. In zone 9b, frost is a minor factor for Coalinga — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in Coalinga is now 10 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
COALINGA · 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 Coalinga’s own odds, recorded at COALINGA.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 9 | Mar 11 | Feb 15 | Nov 4 | Nov 17 | Dec 1 |
| 32°F | Mar 8 | Feb 14 | Jan 10 | Nov 15 | Nov 30 | Dec 21 |
| 28°F | Feb 19 | Jan 16 | Dec 20 | Nov 29 | Dec 16 | Jan 18 |
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 Coalinga, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 33 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.
Coalinga planting FAQ
When is the last spring frost in Coalinga, CA?
Plan for the last spring frost in Coalinga around February 14 (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 Coalinga, CA?
Expect Coalinga's first fall frost near November 30 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Coalinga in?
Coalinga is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Coalinga?
Coalinga has about 289 frost-free days — a long growing season — between the average last spring frost (February 14) and first fall frost (November 30).
When should I plant tomatoes in Coalinga?
For Coalinga, sow tomatoes indoors about December 20–January 3 and move the seedlings out around February 21, after the last spring frost.
Never miss a window in Coalinga
An email when it’s time to start seeds, transplant, and sow — timed to Coalinga’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at COALINGA, 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 Coalinga, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00041864. Retrieved from https://blissgarden.com/california/coalinga.