Last frost date in Wasco, CA
In Wasco, the last spring frost comes around January 31 in an average year. Wait until February 27 if you want 90% odds of no more frost. The first fall frost usually arrives about December 5, which leaves 315 frost-free days. An early freeze before November 21 happens one year in ten.
- Safe after (10% risk)
- Feb 27
- Average first frost
- Dec 5
- Frost-free season
- 315 days
- Hard freeze (28°F) ends
- Jan 4
No frost in the next 6 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2248°
- FriOct 2346°
- SatOct 2446°
- SunOct 2546°
- MonOct 2646°
- TueOct 2745°
Planting calendar for Wasco
Windows count forward or back from the average frost dates above. Click a crop for dates across California.
TomatoesFeb 15–Mar 1
PumpkinsFeb 15–Mar 1
SunflowersFeb 15–Mar 8
CucumbersFeb 22–Mar 1
CornFeb 15–Mar 1
Sweet potatoesFeb 21–Mar 7
WatermelonFeb 15–Mar 1
Green beansFeb 15–Mar 8
ZucchiniFeb 15–Mar 1
OkraFeb 21–Mar 7
PeppersFeb 15–Mar 1
BasilFeb 15–Mar 1
Butternut squashFeb 15–Mar 1
CantaloupeFeb 15–Mar 1
EggplantFeb 15–Mar 1
PotatoesJan 3–Jan 17
OnionsDec 20–Jan 10
CarrotsJan 10–Feb 14
LettuceJan 17–Feb 7
BroccoliJan 3–Jan 17
BeetsJan 3–Feb 14
PeasDec 20–Jan 3
CabbageJan 3–Jan 17
RadishesDec 27–Feb 7
Brussels sproutsJan 17–Jan 31
SpinachDec 20–Jan 10
CilantroJan 17–Feb 7
KaleJan 3–Jan 17
Collard greensJan 3–Jan 17
TurnipsJan 3–Jan 17
DillJan 31–Feb 14
CeleryFeb 7–Feb 14
CauliflowerJan 17–Jan 31
LeeksJan 17–Jan 31
Swiss chardJan 17–Feb 14
ParsleyJan 17–Feb 7
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 3–Jan 17
AsparagusJan 3–Jan 17Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Jan 2 | Jan 31 | Feb 27 | Nov 21 | Dec 5 | Jan 2 |
| Hard freeze, 28°F | Dec 8 | Jan 4 | Feb 4 | Nov 29 | Dec 16 | Jan 16 |
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 Wasco (USC00049452) sits 0.9 miles from the center of Wasco at 291 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 Wasco, CA?
The average last frost date in Wasco is January 31, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after February 27.
When is the first frost in Wasco?
The first frost in fall usually comes around December 5. One year in ten it arrives before November 21.
How long is the growing season in Wasco?
About 315 days between the average last and first frost.
When should I plant tomatoes in Wasco?
Plant tomato seedlings outside from February 15 to March 1. Start seeds indoors six to eight weeks earlier.
Nearby in California
- ShafterFeb 20
- DelanoJan 31
- OildaleJan 31
- BakersfieldJan 31
- East NilesJan 31
- CorcoranFeb 15
- PortervilleJan 20
- TulareJan 23
- VisaliaJan 23
- HanfordFeb 7
- LemooreFeb 24
- DinubaJan 23