Frost dates for 92051Oceanside, CA
Frost occurs in about 1% of years near Oceanside, based on NOAA 1991-2020 records for the Oceanside Marina, 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 19 · Jan 9 · Feb 14 | Dec 10 · Jan 2 · Feb 8 | 365 days | 40% |
| Frost / freeze (32°F) | — | — | 365 days | 1% |
| Hard freeze (28°F) | — | — | 365 days | 0% |
Where these dates come from
ZIP code 92051 is matched to the NOAA station Oceanside Marina, CA, 2.1 km away, at 10 ft elevation (59 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Oceanside Marina, CA (used) | 10 ft | — | — |
| Oceanside Muni Ap, CA | 28 ft | Jan 23 | Dec 11 |
| Camp Pendleton Mcas, CA | 75 ft | Feb 16 | Dec 8 |
| Carlsbad Palomar Ap, CA | 328 ft | — | — |
Frost dates near Oceanside
- Oceanside, CA 92049 · last —, first —
- Carlsbad, CA 92013 · last —, first —
- Camp Pendleton, CA 92055 · last —, first —
- San Luis Rey, CA 92068 · last Feb 16, first Dec 8
- Vista, CA 92083 · last —, first —
- Encinitas, CA 92024 · last —, first —
- San Marcos, CA 92078 · last Jan 2, first Dec 30
- Bonsall, CA 92003 · last Jan 30, first Jan 7
Frequently asked questions
- When is the last frost in Oceanside, CA?
- Frost occurs in about 1% of years at the nearest NOAA station (Oceanside Marina, CA), so there is no reliable average last frost date.
- When is the first frost in Oceanside, 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.