Frost dates for 90637La Mirada, CA
Frost occurs in about 1% of years near La Mirada, based on NOAA 1991-2020 records for the Anaheim, CA station.
Frost occurs in about 1% 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 9 · Jan 4 · Feb 16 | Dec 4 · Dec 28 · Feb 9 | 365 days | 35% |
| Frost / freeze (32°F) | — | — | 365 days | 1% |
| Hard freeze (28°F) | — | — | 365 days | 0% |
Where these dates come from
ZIP code 90637 is matched to the NOAA station Anaheim, CA, 16.7 km away, at 235 ft elevation (41 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Anaheim, CA (used) | 235 ft | — | — |
| Fullerton Muni Ap, CA | 96 ft | — | — |
| Long Beach Daugherty Fld, CA | 31 ft | — | — |
| San Gabriel Fire Dept, CA | 363 ft | Jan 4 | Jan 2 |
Frost dates near La Mirada
- La Mirada, CA 90638 · last —, first —
- Whittier, CA 90604 · last —, first —
- Buena Park, CA 90621 · last —, first —
- La Habra, CA 90632 · last —, first —
- Norwalk, CA 90650 · last —, first —
- Fullerton, CA 92833 · last —, first —
- Santa Fe Springs, CA 90670 · last —, first —
- Cerritos, CA 90703 · last —, first —
Frequently asked questions
- When is the last frost in La Mirada, CA?
- Frost occurs in about 1% of years at the nearest NOAA station (Anaheim, CA), so there is no reliable average last frost date.
- When is the first frost in La Mirada, CA?
- Frost occurs in about 1% 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.