FrostDateByZip

Frost dates for 93962Spreckels, CA

The average last spring frost in Spreckels is February 4 and the average first fall frost is December 6, giving a typical growing season of about 311 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Feb 4

Safer after Mar 11 (1-in-10 risk)

Average first fall frost
Dec 6

Possible by Nov 18 (1-in-10 risk)

Growing season
311 days

First frost typically in 40 days

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.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)Feb 18 · Mar 25 · Apr 18Nov 3 · Nov 19 · Dec 7238 days100%
Frost / freeze (32°F)Dec 25 · Feb 4 · Mar 11Nov 18 · Dec 6 · Jan 5311 days96%
Hard freeze (28°F)Dec 5 · Dec 31 · Jan 28Dec 1 · Dec 19 · Jan 14364 days50%

Where these dates come from

ZIP code 93962 is matched to the NOAA station Salinas #2, CA, 3.8 km away, at 45 ft elevation (11 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Salinas #2, CA (used)45 ftFeb 4Dec 6
Salinas Municipal Ap, CA74 ftJan 29Dec 10
Carmel Valley, CA480 ftFeb 20Dec 8
Monterey Peninsul Ap, CA165 ftJan 2Dec 23

Frost dates near Spreckels

Frequently asked questions

When is the last frost in Spreckels, CA?
For ZIP code 93962, the average last spring frost (32°F) is February 4, based on NOAA 1991-2020 climate normals for the Salinas #2, CA weather station. There is a 1-in-10 chance of a frost after March 11.
When is the first frost in Spreckels, CA?
The average first fall frost (32°F) is December 6. There is a 1-in-10 chance of frost by November 18, so tender plants are at risk from that point on.
How long is the growing season in 93962?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 311 days long.
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.