Last frost date in Hesperia, CA
In Hesperia, the last spring frost comes around February 28 in an average year. Wait until April 3 if you want 90% odds of no more frost. The first fall frost usually arrives about December 1, which leaves 270 frost-free days. An early freeze before November 11 happens one year in ten.
- Safe after (10% risk)
- Apr 3
- Average first frost
- Dec 1
- Frost-free season
- 270 days
- Hard freeze (28°F) ends
- Jan 30
No frost in the next 6 nights
National Weather Service forecast, updated Oct 22, 12:24 UTC
- ThuOct 2246°
- FriOct 2346°
- SatOct 2449°
- SunOct 2550°
- MonOct 2650°
- TueOct 2750°
Planting calendar for Hesperia
Windows count forward or back from the average frost dates above. Click a crop for dates across California.
TomatoesMar 7–Mar 21
PumpkinsMar 14–Mar 28
SunflowersFeb 28–Mar 21
CucumbersMar 14–Mar 21
CornMar 7–Mar 21
Sweet potatoesMar 21–Apr 4
WatermelonMar 14–Mar 28
Green beansMar 7–Mar 28
ZucchiniMar 7–Mar 21
OkraMar 21–Apr 4
PeppersMar 14–Mar 28
BasilMar 7–Mar 21
Butternut squashMar 7–Mar 21
CantaloupeMar 14–Mar 28
EggplantMar 14–Mar 28
PotatoesJan 31–Feb 14
OnionsJan 17–Feb 7
CarrotsFeb 7–Mar 14
LettuceFeb 14–Mar 7
BroccoliJan 31–Feb 14
BeetsJan 31–Mar 14
PeasJan 17–Jan 31
CabbageJan 31–Feb 14
RadishesJan 24–Mar 7
Brussels sproutsFeb 14–Feb 28
SpinachJan 17–Feb 7
CilantroFeb 14–Mar 7
KaleJan 31–Feb 14
Collard greensJan 31–Feb 14
TurnipsJan 31–Feb 14
DillFeb 28–Mar 14
CeleryMar 7–Mar 14
CauliflowerFeb 14–Feb 28
LeeksFeb 14–Feb 28
Swiss chardFeb 14–Mar 14
ParsleyFeb 14–Mar 7
Tulip bulbsNov 17–Dec 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 31–Feb 14
AsparagusJan 31–Feb 14Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Feb 1 | Feb 28 | Apr 3 | Nov 11 | Dec 1 | Dec 16 |
| Hard freeze, 28°F | Dec 31 | Jan 30 | Mar 1 | Nov 26 | Dec 14 | Jan 10 |
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 Hesperia 2E (USC00043937) sits 3.2 miles from the center of Hesperia at 3,055 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 Hesperia, CA?
The average last frost date in Hesperia is February 28, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 3.
When is the first frost in Hesperia?
The first frost in fall usually comes around December 1. One year in ten it arrives before November 11.
How long is the growing season in Hesperia?
About 270 days between the average last and first frost.
When should I plant tomatoes in Hesperia?
Plant tomato seedlings outside from March 7 to March 21. Start seeds indoors six to eight weeks earlier.
Nearby in California
- VictorvilleMar 18
- Apple ValleyMar 18
- AdelantoMar 18
- San BernardinoJan 27
- RialtoJan 10
- HighlandJan 27
- FontanaJan 4
- Rancho CucamongaJan 4
- ColtonJan 10
- BloomingtonJan 10
- Loma LindaJan 27
- RedlandsJan 27