Frost dates for 94705Berkeley, CA
Frost occurs in about 27% of years near Berkeley, based on NOAA 1991-2020 records for the Berkeley, CA station.
Frost occurs in about 27% 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 29 · Feb 5 · Mar 20 | Nov 27 · Dec 19 · Jan 26 | 319 days | 93% |
| Frost / freeze (32°F) | Dec 14 · Jan 3 · Feb 14 | Dec 10 · Jan 1 · Jan 29 | 365 days | 27% |
| Hard freeze (28°F) | — | — | 365 days | 1% |
Where these dates come from
ZIP code 94705 is matched to the NOAA station Berkeley, CA, 2.1 km away, at 310 ft elevation (41 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Berkeley, CA (used) | 310 ft | Jan 3 | Jan 1 |
| Oakland Museum, CA | 30 ft | — | — |
| Richmond, CA | 20 ft | Jan 4 | Jan 2 |
| Oakland Metro Intl Ap, CA | 6 ft | Jan 7 | Dec 23 |
Frost dates near Berkeley
- Berkeley, CA 94704 · last Jan 3, first Jan 1
- Oakland, CA 94618 · last Jan 3, first Jan 1
- Emeryville, CA 94608 · last —, first —
- Piedmont, CA 94620 · last Jan 3, first Jan 1
- Albany, CA 94706 · last Jan 4, first Jan 2
- Orinda, CA 94563 · last Jan 3, first Jan 1
- El Cerrito, CA 94530 · last Jan 3, first Jan 1
- Canyon, CA 94516 · last Jan 3, first Jan 1
Frequently asked questions
- When is the last frost in Berkeley, CA?
- Frost occurs in about 27% of years at the nearest NOAA station (Berkeley, CA), so there is no reliable average last frost date.
- When is the first frost in Berkeley, CA?
- Frost occurs in about 27% 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.