Frost dates · USDA zone 9b
Frost dates for Yuba City, CA
Yuba City, CA sees its last 32 °F night of spring around February 11 and its first of fall around November 30 — a 289-day freeze-free season in a typical year.
Pick a sauce; the Plan Builder runs this station's dates and hands back the calendar, plant count and gear list.
Freeze odds, by date
| Odds | Last spring freeze after | First fall freeze before |
|---|---|---|
| 9 years in 10 | Jan 6 | Dec 21 |
| Median — 1 year in 2 | Feb 11 | Nov 30 |
| 1 year in 10 | Mar 12 | Nov 12 |
The top row is the risky edge: in 9 years of 10 a spring freeze still comes after it, so tender transplants set out then need cover. The bottom row is the cautious date — only 1 year in 10 freezes after it — and the one to plan uncovered tender transplants against. Freeze-free season: 289 days median, at least 248 in 9 years of 10, at least 329 days in 1 year of 10. NOAA ranks season length year by year, so it is not the gap between two rows above. A hard freeze (28 °F) has a median last date of Jan 12 and first of Dec 13.
Yuba City planting calendar, 2027
Every row runs from the median last frost (Feb 11) and median first frost (Nov 30) above, using each cultivar's days to maturity. Same engine as the Plan Builder.
| Crop | Start indoors | Transplant / plant | First harvest | Days |
|---|---|---|---|---|
| Hardneck GarlicSiberian (porcelain hardneck) | — | Oct 15prior fall | Jun 12 | 240 from sow |
| Spanish OnionYellow Sweet Spanish (long-day) | Nov 19 | Jan 14 | May 4 | 110 from transplant |
| Mustard greensGarnet Giant (Brassica juncea) | Direct sow | Feb 11 | Mar 13 | 30 from sow |
| CilantroSlow Bolt (Coriandrum sativum) | Jan 28 | Jan 28 | Mar 14 | 45 from sow |
| Genovese BasilGenovese | Jan 14 | Feb 25 | Apr 26 | 60 from transplant |
| CayenneLong Slim Cayenne (Capsicum annuum) | Dec 17 | Feb 18 | May 4 | 75 from transplant |
| HabaneroOrange Habanero (Capsicum chinense) | Dec 3 | Feb 25 | May 31 | 95 from transplant |
| JalapeñoEarly Jalapeño (Capsicum annuum) | Dec 17 | Feb 18 | May 4 | 75 from transplant |
| Marconi Red PepperMarconi Red (Capsicum annuum) | Dec 17 | Feb 18 | May 9 | 80 from transplant |
| SerranoSerrano Tampiqueño (Capsicum annuum) | Dec 17 | Feb 18 | May 9 | 80 from transplant |
| Nantes CarrotScarlet Nantes | Jan 28 | Jan 28 | Apr 8 | 70 from sow |
| TomatilloToma Verde | Dec 31 | Feb 18 | Apr 29 | 70 from transplant |
| Roma TomatoRoma VF (determinate paste) | Dec 31 | Feb 18 | May 4 | 75 from transplant |
| San Marzano TomatoSan Marzano (indeterminate paste) | Dec 31 | Feb 18 | May 9 | 80 from transplant |
Tight means first harvest lands within two weeks of the median first fall frost: start that crop indoors on time or cover it in fall.
What sauce can Yuba City grow?
Each sauce, scheduled for a Yuba City container garden: when the first seeds go in and when enough fruit has ripened for one batch.
Yuba City frost questions
When is the last frost in Yuba City, CA?
The median last 32 °F freeze at MARYSVILLE YUBA CO AP, CA is February 11: half of years see a later one. One year in ten, a freeze still comes after March 12; nine years in ten, it comes after January 6. Source: NOAA NCEI 1991–2020 U.S. Climate Normals.
When is the first frost in Yuba City, CA?
The median first 32 °F freeze of fall is November 30. One year in ten it arrives before November 12; nine years in ten, before December 21.
How long is the growing season in Yuba City, CA?
289 days between the last spring and first fall 32 °F freeze in a median year. Nine years in ten the season runs at least 248 days; one year in ten, at least 329 days.
What growing zone is Yuba City, CA?
USDA hardiness zone 9b, per the 2023 USDA Plant Hardiness Zone Map for ZIP 95993. A zone describes the coldest winter night, not when frost ends, so it is the wrong number for a planting calendar — the frost dates on this page are the right one.
When should I plant tomatoes in Yuba City, CA?
Start Roma VF (determinate paste) seeds indoors around Dec 31 and transplant around Feb 18, 1 week after the median last frost. To cut the freeze risk to one year in ten, wait for Mar 12. First ripe fruit lands around May 4.
When should I plant peppers in Yuba City, CA?
Sow jalapeño indoors on a heat mat around Dec 17; transplant no earlier than Feb 18, and wait past it until nights hold above 50 °F — that can run weeks later. First green pods around May 4.
Nearby in California
- Lincolnlast frost Feb 25
- Rosevillelast frost Feb 25
- Rocklinlast frost Feb 25
- Woodlandlast frost Feb 7
- Citrus Heightslast frost Jan 12
- Sacramentolast frost Jan 12
All California frost dates → · How frost-date math drives a sowing calendar →