Last frost date in Tracy, CA
In Tracy, the last spring frost comes around February 25 in an average year. Wait until April 6 if you want 90% odds of no more frost. The first fall frost usually arrives about November 26, which leaves 272 frost-free days. An early freeze before November 8 happens one year in ten.
- Safe after (10% risk)
- Apr 6
- Average first frost
- Nov 26
- Frost-free season
- 272 days
- Hard freeze (28°F) ends
- Jan 18
No frost in the next 6 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2255°
- FriOct 2352°
- SatOct 2452°
- SunOct 2553°
- MonOct 2653°
- TueOct 2753°
Planting calendar for Tracy
Windows count forward or back from the average frost dates above. Click a crop for dates across California.
TomatoesMar 4–Mar 18
PumpkinsMar 11–Mar 25
SunflowersFeb 25–Mar 18
CucumbersMar 11–Mar 18
CornMar 4–Mar 18
Sweet potatoesMar 18–Apr 1
WatermelonMar 11–Mar 25
Green beansMar 4–Mar 25
ZucchiniMar 4–Mar 18
OkraMar 18–Apr 1
PeppersMar 11–Mar 25
BasilMar 4–Mar 18
Butternut squashMar 4–Mar 18
CantaloupeMar 11–Mar 25
EggplantMar 11–Mar 25
PotatoesJan 28–Feb 11
OnionsJan 14–Feb 4
CarrotsFeb 4–Mar 11
LettuceFeb 11–Mar 4
BroccoliJan 28–Feb 11
BeetsJan 28–Mar 11
PeasJan 14–Jan 28
CabbageJan 28–Feb 11
RadishesJan 21–Mar 4
Brussels sproutsFeb 11–Feb 25
SpinachJan 14–Feb 4
CilantroFeb 11–Mar 4
KaleJan 28–Feb 11
Collard greensJan 28–Feb 11
TurnipsJan 28–Feb 11
DillFeb 25–Mar 11
CeleryMar 4–Mar 11
CauliflowerFeb 11–Feb 25
LeeksFeb 11–Feb 25
Swiss chardFeb 11–Mar 11
ParsleyFeb 11–Mar 4
Tulip bulbsNov 12–Dec 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 28–Feb 11
AsparagusJan 28–Feb 11Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Jan 24 | Feb 25 | Apr 6 | Nov 8 | Nov 26 | Dec 12 |
| Hard freeze, 28°F | Dec 26 | Jan 18 | Feb 21 | Nov 25 | Dec 11 | Jan 4 |
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 Tracy Carbona (USC00048999) sits 6.6 miles from the center of Tracy at 135 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 Tracy, CA?
The average last frost date in Tracy is February 25, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 6.
When is the first frost in Tracy?
The first frost in fall usually comes around November 26. One year in ten it arrives before November 8.
How long is the growing season in Tracy?
About 272 days between the average last and first frost.
When should I plant tomatoes in Tracy?
Plant tomato seedlings outside from March 4 to March 18. Start seeds indoors six to eight weeks earlier.