When is the last frost in Oceanside, CA?

Frost occurs in about 35% of years at the nearest NOAA station (Vista, CA), so there is no reliable average last frost date.

When is the first frost in Oceanside, CA?

Frost occurs in about 35% 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.

Frost dates for 92056Oceanside, CA

Frost occurs in about 35% of years near Oceanside, based on NOAA 1991-2020 records for the Vista, CA station.

Frost occurs in about 35% 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.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
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 27 · Feb 16 · Apr 6	Dec 4 · Dec 25 · Feb 9	315 days	89%
Frost / freeze (32°F)	Dec 20 · Jan 30 · Mar 16	Dec 14 · Jan 7 · Mar 14	365 days	35%
Hard freeze (28°F)	Dec 14 · Dec 30 · Mar 16	Dec 13 · Dec 30 · Mar 16	365 days	10%

Where these dates come from

ZIP code 92056 is matched to the NOAA station Vista, CA, 6.4 km away, at 430 ft elevation (63 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Vista, CA (used)	430 ft	Jan 30	Jan 7
Oceanside Muni Ap, CA	28 ft	Jan 23	Dec 11
Carlsbad Palomar Ap, CA	328 ft	—	—
Oceanside Marina, CA	10 ft	—	—

Frost dates near Oceanside

Vista, CA 92083 · last —, first —
Carlsbad, CA 92010 · last —, first —
Oceanside, CA 92057 · last Feb 16, first Dec 8
San Luis Rey, CA 92068 · last Feb 16, first Dec 8
Camp Pendleton, CA 92055 · last —, first —
San Marcos, CA 92069 · last Jan 2, first Dec 30
Bonsall, CA 92003 · last Jan 30, first Jan 7
Encinitas, CA 92024 · last —, first —

Frequently asked questions

When is the last frost in Oceanside, CA?: Frost occurs in about 35% of years at the nearest NOAA station (Vista, CA), so there is no reliable average last frost date.
When is the first frost in Oceanside, CA?: Frost occurs in about 35% 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.