Frost dates for 91342Sylmar, CA
Frost is extremely rare here near Sylmar, based on NOAA 1991-2020 records for the Getty Ctr, CA station.
Frost is extremely rare here. 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) | — | — | 365 days | 5% |
| Frost / freeze (32°F) | — | — | 365 days | 0% |
| Hard freeze (28°F) | — | — | 365 days | 0% |
Where these dates come from
ZIP code 91342 is matched to the NOAA station Getty Ctr, CA, 24.7 km away, at 1,117 ft elevation (143 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Getty Ctr, CA (used) | 1,117 ft | — | — |
| Northridge Cal State, CA | 904 ft | Jan 2 | Jan 1 |
| Van Nuys Ap, CA | 770 ft | Dec 31 | Dec 30 |
| Burbank Glendale Pasadena Ap, CA | 741 ft | Dec 31 | Dec 28 |
Frost dates near Sylmar
- Sylmar, CA 91392 · last —, first —
- San Fernando, CA 91340 · last —, first —
- Pacoima, CA 91333 · last Dec 31, first Dec 30
- Mission Hills, CA 91345 · last Dec 31, first Dec 30
- Granada Hills, CA 91344 · last Dec 31, first Dec 30
- North Hills, CA 91343 · last Dec 31, first Dec 30
- Panorama City, CA 91402 · last Dec 31, first Dec 30
- Sunland, CA 91040 · last —, first —
Frequently asked questions
- When is the last frost in Sylmar, CA?
- Frost is extremely rare here at the nearest NOAA station (Getty Ctr, CA), so there is no reliable average last frost date.
- When is the first frost in Sylmar, CA?
- Frost is extremely rare here 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.