When Is the Last Frost?

Pacific Grove, CA frost dates

Last spring frostJan 1median date
First fall frostDec 30median date
Growing season363 daysfrost-free
Hardiness zone10aZone 10a

Frost is light and occasional here — typically a few cold nights around midwinter (about 1 a year). Cover tender plants when frost is forecast.

How Pacific Grove compares

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)December 11
50% (median)January 1
10% (safe for tender plants)January 21
First fall frost
Chance of frost beforeDate
10% (early)December 7
50% (median)December 30
90% (late)January 18

Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.

Gardening where frost is rare

Pacific Grove, CA only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:

About these dates

Based on 1991–2020 NOAA climate normals for the Monterey, CA weather station, 3 km away (elevation 259 ft (79 m)).

Frost dates near Pacific Grove

Frequently asked questions

When is the last frost in Pacific Grove, CA?

The median last spring frost in Pacific Grove, CA is January 1. There is still about a 10% chance of frost after January 21, so wait until then to plant frost-tender crops like tomatoes and peppers.

When is the first frost in Pacific Grove, CA?

The median first fall frost is December 30, with about a 10% chance of frost before December 7.

How long is the growing season in Pacific Grove, CA?

About 363 days between the median last spring frost and first fall frost.

What planting zone is Pacific Grove, CA?

Pacific Grove, CA is in USDA hardiness zone 10a.

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