Frost Report

All states California

Frost dates for Tracy, CA

When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.

Last spring frost

February 25

typical year

Safe to plant

April 6

frost is over in 9 of 10 years

First fall frost

November 26

typical year

Growing season

272 days

frost-free, typical year

When to plant

Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.

CropStart indoorsPlant outsideFall planting
Cool-season crops
Peas – Jan 28 – Feb 11 –
Spinach – Jan 14 – Feb 4 Oct 1 – 15
Lettuce – Jan 28 – Feb 18 Oct 1 – 15
Radishes – Jan 28 – Mar 11 Oct 15 – 29
Onions – Jan 28 – Feb 11 –
Potatoes – Feb 4 – 18 –
Carrots – Feb 4 – 25 Sep 3 – 17
Beets – Jan 28 – Feb 11 Sep 17 – Oct 1
Kale Dec 17 – 31 Jan 28 – Feb 11 Sep 17 – Oct 1
Broccoli Dec 17 – 31 Feb 11 – 25 Sep 17 – Oct 1
Cabbage Dec 3 – 17 Jan 28 – Feb 11 Sep 17 – Oct 1
Garlic – – Oct 15 – Nov 5
Warm-season crops
Tomatoes Feb 9 – 23 Apr 6 – 20 –
Peppers Feb 2 – 16 Apr 13 – 27 –
Cucumbers – Apr 6 – 27 –
Zucchini – Apr 6 – May 4 –
Pumpkins – Apr 6 – 27 –
Green beans – Apr 6 – Sep 17 –
Sweet corn – Apr 6 – May 4 –
Basil Mar 2 – 16 Apr 13 – 20 –

Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.

The year at a glance

Start indoors Plant outside Fall planting

The chance of frost, by date

1 year in 10Half of years9 years in 10
Spring frost after April 6February 25January 24
Fall frost before November 8November 26December 12

Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.

Hard freeze (28°F)

A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around January 18 (February 21 in a late year), and the first one in fall around December 11.

Towns that use these dates

This is the nearest NOAA station with frost records for 1 town.

Tracy

Where these dates come from

NOAA weather station TRACY CARBONA, CA US (USC00048999), 1991–2020 climate normals. It's the nearest station for 5 zip codes, all within 10 miles:

95304, 95337, 95376, 95385, 95387

Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.