When to plant in North Fair Oaks, CA
USDA Zone 9bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for North Fair Oaks, California — all computed from North Fair Oaks's nearest NOAA weather station.
North Fair Oaks enjoys a long ~329-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. In zone 9b, frost is a minor factor for North Fair Oaks — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in North Fair Oaks is now 6 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
REDWOOD CITY · 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 North Fair Oaks’s own odds, recorded at REDWOOD CITY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 31 | Feb 25 | Jan 25 | Nov 8 | Nov 25 | Dec 14 |
| 32°F | Feb 16 | Jan 17 | Dec 20 | Nov 24 | Dec 12 | Jan 14 |
| 28°F | Jan 22 | Dec 31 | Dec 14 | Dec 5 | Dec 26 | Jan 15 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in North Fair Oaks, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 7 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.
North Fair Oaks planting FAQ
When is the last spring frost in North Fair Oaks, CA?
North Fair Oaks's average last spring frost falls near January 17 — 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 North Fair Oaks, CA?
The first fall frost in North Fair Oaks typically arrives around December 12 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is North Fair Oaks in?
North Fair Oaks is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in North Fair Oaks?
North Fair Oaks has about 329 frost-free days — a long growing season — between the average last spring frost (January 17) and first fall frost (December 12).
When should I plant tomatoes in North Fair Oaks?
For North Fair Oaks, sow tomatoes indoors about November 22–December 6 and move the seedlings out around January 24, after the last spring frost.
Never miss a window in North Fair Oaks
An email when it’s time to start seeds, transplant, and sow — timed to North Fair Oaks’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Redwood City · 5 km
- Menlo Park · 5 km
- San Carlos · 6 km
- Stanford · 6 km
- East Palo Alto · 6 km
- Belmont · 9 km
- Palo Alto · 10 km
- Foster City · 11 km
Frost dates recorded at REDWOOD CITY, 3 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 North Fair Oaks, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00047339. Retrieved from https://blissgarden.com/california/north-fair-oaks.