When Is the Last Frost?

Frost dates for 85395 — Goodyear, AZ

Last spring frostJan 7median date
First fall frostDec 24median date
Growing season351 daysfrost-free
Hardiness zone9bZone 9b

Frost is light and occasional here — typically a few cold nights around midwinter (about 7 a year). Cover tender plants when frost is forecast.

How Goodyear compares

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)December 17
50% (median)January 7
10% (safe for tender plants)February 5
First fall frost
Chance of frost beforeDate
10% (early)December 6
50% (median)December 24
90% (late)January 16

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

Goodyear, AZ 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 Litchfield Park, AZ weather station, 4 km away (elevation 1,040 ft (317 m)).

ZIP codes in Goodyear: 85338 85395

Frost dates near Goodyear

Frequently asked questions

When is the last frost in Goodyear, AZ?

The median last spring frost in Goodyear, AZ is January 7. There is still about a 10% chance of frost after February 5, so wait until then to plant frost-tender crops like tomatoes and peppers.

When is the first frost in Goodyear, AZ?

The median first fall frost is December 24, with about a 10% chance of frost before December 6.

How long is the growing season in Goodyear, AZ?

About 351 days between the median last spring frost and first fall frost.

What planting zone is Goodyear, AZ?

Goodyear, AZ is in USDA hardiness zone 9b.

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