Last frost date in Stockton, CA
Expect the last frost in Stockton around February 5. Frost after March 11 happens in only one year out of ten. The first fall frost usually arrives about December 8, which leaves 305 frost-free days. An early freeze before November 17 happens one year in ten.
- Safe after (10% risk)
- Mar 11
- Average first frost
- Dec 8
- Frost-free season
- 305 days
- Hard freeze (28°F) ends
- Jan 11
No frost in the next 6 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2255°
- FriOct 2348°
- SatOct 2450°
- SunOct 2550°
- MonOct 2650°
- TueOct 2750°
Planting calendar for Stockton
Windows count forward or back from the average frost dates above. Click a crop for dates across California.
TomatoesFeb 15–Mar 1
PumpkinsFeb 19–Mar 5
SunflowersFeb 15–Mar 8
CucumbersFeb 22–Mar 1
CornFeb 15–Mar 1
Sweet potatoesFeb 26–Mar 12
WatermelonFeb 19–Mar 5
Green beansFeb 15–Mar 8
ZucchiniFeb 15–Mar 1
OkraFeb 26–Mar 12
PeppersFeb 19–Mar 5
BasilFeb 15–Mar 1
Butternut squashFeb 15–Mar 1
CantaloupeFeb 19–Mar 5
EggplantFeb 19–Mar 5
PotatoesJan 8–Jan 22
OnionsDec 25–Jan 15
CarrotsJan 15–Feb 19
LettuceJan 22–Feb 12
BroccoliJan 8–Jan 22
BeetsJan 8–Feb 19
PeasDec 25–Jan 8
CabbageJan 8–Jan 22
RadishesJan 1–Feb 12
Brussels sproutsJan 22–Feb 5
SpinachDec 25–Jan 15
CilantroJan 22–Feb 12
KaleJan 8–Jan 22
Collard greensJan 8–Jan 22
TurnipsJan 8–Jan 22
DillFeb 5–Feb 19
CeleryFeb 12–Feb 19
CauliflowerJan 22–Feb 5
LeeksJan 22–Feb 5
Swiss chardJan 22–Feb 19
ParsleyJan 22–Feb 12
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 8–Jan 22
AsparagusJan 8–Jan 22Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Dec 27 | Feb 5 | Mar 11 | Nov 17 | Dec 8 | Jan 6 |
| Hard freeze, 28°F | Dec 12 | Jan 11 | Feb 21 | Dec 1 | Dec 23 | Jan 29 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Stockton Fire Station 4 (USC00048560) sits 1.7 miles from the center of Stockton at 12 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Stockton, CA?
The average last frost date in Stockton is February 5, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 11.
When is the first frost in Stockton?
The first frost in fall usually comes around December 8. One year in ten it arrives before November 17.
How long is the growing season in Stockton?
About 305 days between the average last and first frost.
When should I plant tomatoes in Stockton?
Plant tomato seedlings outside from February 15 to March 1. Start seeds indoors six to eight weeks earlier.