Last frost date in Barstow, CA
In Barstow, the last spring frost comes around February 22 in an average year. Wait until March 24 if you want 90% odds of no more frost. The first fall frost usually arrives about November 23, which leaves 271 frost-free days. An early freeze before November 9 happens one year in ten.
- Safe after (10% risk)
- Mar 24
- Average first frost
- Nov 23
- Frost-free season
- 271 days
- Hard freeze (28°F) ends
- Jan 30
No frost in the next 6 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2247°
- FriOct 2348°
- SatOct 2450°
- SunOct 2551°
- MonOct 2651°
- TueOct 2751°
Planting calendar for Barstow
Windows count forward or back from the average frost dates above. Click a crop for dates across California.
TomatoesMar 1–Mar 15
PumpkinsMar 8–Mar 22
SunflowersFeb 22–Mar 15
CucumbersMar 8–Mar 15
CornMar 1–Mar 15
Sweet potatoesMar 15–Mar 29
WatermelonMar 8–Mar 22
Green beansMar 1–Mar 22
ZucchiniMar 1–Mar 15
OkraMar 15–Mar 29
PeppersMar 8–Mar 22
BasilMar 1–Mar 15
Butternut squashMar 1–Mar 15
CantaloupeMar 8–Mar 22
EggplantMar 8–Mar 22
PotatoesJan 25–Feb 8
OnionsJan 11–Feb 1
CarrotsFeb 1–Mar 8
LettuceFeb 8–Mar 1
BroccoliJan 25–Feb 8
BeetsJan 25–Mar 8
PeasJan 11–Jan 25
CabbageJan 25–Feb 8
RadishesJan 18–Mar 1
Brussels sproutsFeb 8–Feb 22
SpinachJan 11–Feb 1
CilantroFeb 8–Mar 1
KaleJan 25–Feb 8
Collard greensJan 25–Feb 8
TurnipsJan 25–Feb 8
DillFeb 22–Mar 8
CeleryMar 1–Mar 8
CauliflowerFeb 8–Feb 22
LeeksFeb 8–Feb 22
Swiss chardFeb 8–Mar 8
ParsleyFeb 8–Mar 1
Tulip bulbsNov 9–Dec 14
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 25–Feb 8
AsparagusJan 25–Feb 8Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Jan 29 | Feb 22 | Mar 24 | Nov 9 | Nov 23 | Dec 8 |
| Hard freeze, 28°F | Jan 2 | Jan 30 | Feb 25 | Nov 18 | Dec 6 | Dec 28 |
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 Barstow (USC00040521) sits 2.1 miles from the center of Barstow at 2,220 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 Barstow, CA?
The average last frost date in Barstow is February 22, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 24.
When is the first frost in Barstow?
The first frost in fall usually comes around November 23. One year in ten it arrives before November 9.
How long is the growing season in Barstow?
About 271 days between the average last and first frost.
When should I plant tomatoes in Barstow?
Plant tomato seedlings outside from March 1 to March 15. Start seeds indoors six to eight weeks earlier.
Nearby in California
- Apple ValleyMar 18
- VictorvilleMar 18
- AdelantoMar 18
- HesperiaFeb 28
- San BernardinoJan 27
- HighlandJan 27
- RialtoJan 10
- RedlandsJan 27
- FontanaJan 4
- YucaipaJan 27
- Loma LindaJan 27
- ColtonJan 10