When is the last frost in Lockwood, CA?

Frost occurs in about 40% of years at the nearest NOAA station (Hearst Castle, CA), so there is no reliable average last frost date.

When is the first frost in Lockwood, CA?

Frost occurs in about 40% 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 93932Lockwood, CA

Frost occurs in about 40% of years near Lockwood, based on NOAA 1991-2020 records for the Hearst Castle, CA station.

Frost occurs in about 40% 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)	Jan 21 · Mar 13 · Apr 24	Nov 26 · Dec 25 · Feb 20	283 days	94%
Frost / freeze (32°F)	Dec 29 · Feb 13 · Mar 31	Dec 16 · Feb 1 · Mar 20	365 days	40%
Hard freeze (28°F)	—	—	365 days	3%

Where these dates come from

ZIP code 93932 is matched to the NOAA station Hearst Castle, CA, 31.1 km away, at 1,526 ft elevation (489 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Hearst Castle, CA (used)	1,526 ft	Feb 13	Feb 1
King City, CA	320 ft	Feb 23	Nov 22
Priest Valley, CA	2,300 ft	May 8	Oct 22
Paso Robles, CA	730 ft	Mar 15	Nov 10

Frost dates near Lockwood

Jolon, CA 93928 · last Feb 23, first Nov 22
Bradley, CA 93426 · last Apr 4, first Nov 5
San Ardo, CA 93450 · last Apr 4, first Nov 5
San Lucas, CA 93954 · last Feb 23, first Nov 22
King City, CA 93930 · last Feb 23, first Nov 22
San Simeon, CA 93452 · last Feb 13, first Feb 1
Paso Robles, CA 93447 · last Mar 15, first Nov 10
San Miguel, CA 93451 · last May 8, first Oct 22

Frequently asked questions

When is the last frost in Lockwood, CA?: Frost occurs in about 40% of years at the nearest NOAA station (Hearst Castle, CA), so there is no reliable average last frost date.
When is the first frost in Lockwood, CA?: Frost occurs in about 40% 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.