Frost dates for 90063Los Angeles, CA
Frost occurs in about 15% of years near Los Angeles, based on NOAA 1991-2020 records for the San Gabriel Fire Dept, CA station.
Frost occurs in about 15% of years. Frost-tender plants can usually grow year-round, but cover them if a rare cold snap is forecast.
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Dec 20 · Jan 17 · Feb 20 | Dec 6 · Dec 26 · Jan 30 | 346 days | 75% |
| Frost / freeze (32°F) | Dec 19 · Jan 4 · Jan 28 | Dec 18 · Jan 2 · Jan 26 | 365 days | 15% |
| Hard freeze (28°F) | — | — | 365 days | 0% |
Where these dates come from
ZIP code 90063 is matched to the NOAA station San Gabriel Fire Dept, CA, 9 km away, at 363 ft elevation (51 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| San Gabriel Fire Dept, CA (used) | 363 ft | Jan 4 | Jan 2 |
| Los Angeles Dwtn Usc Campus, CA | 230 ft | — | — |
| Pasadena, CA | 864 ft | Jan 8 | Jan 7 |
| Hawthorne Muni Ap, CA | 63 ft | — | — |
Frost dates near Los Angeles
- Los Angeles, CA 90033 · last —, first —
- Alhambra, CA 91803 · last Jan 4, first Jan 2
- Monterey Park, CA 91754 · last Jan 4, first Jan 2
- Dodgertown, CA 90090 · last Jan 2, first Dec 26
- Maywood, CA 90270 · last —, first —
- Bell, CA 90202 · last —, first —
- Montebello, CA 90640 · last —, first —
- South Pasadena, CA 91030 · last Jan 8, first Jan 7
Frequently asked questions
- When is the last frost in Los Angeles, CA?
- Frost occurs in about 15% of years at the nearest NOAA station (San Gabriel Fire Dept, CA), so there is no reliable average last frost date.
- When is the first frost in Los Angeles, CA?
- Frost occurs in about 15% of years at the nearest NOAA station.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.