Frost Report

All states California

Frost dates for El Centro, 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

January 3

typical year

Safe to plant

February 4

frost is over in 9 of 10 years

First fall frost

December 27

typical year

Growing season

363 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 – Dec 6 – 20 –
Spinach – Nov 22 – Dec 13 Nov 1 – 15
Lettuce – Dec 6 – 27 Nov 1 – 15
Radishes – Dec 6 – Jan 17 Nov 15 – 29
Onions – Dec 6 – 20 –
Potatoes – Dec 13 – 27 –
Carrots – Dec 13 – Jan 3 Oct 4 – 18
Beets – Dec 6 – 20 Oct 18 – Nov 1
Kale Oct 25 – Nov 8 Dec 6 – 20 Oct 18 – Nov 1
Broccoli Oct 25 – Nov 8 Dec 20 – Jan 3 Oct 18 – Nov 1
Cabbage Oct 11 – 25 Dec 6 – 20 Oct 18 – Nov 1
Garlic – – Nov 15 – Dec 6
Warm-season crops
Tomatoes Dec 10 – 24 Feb 4 – 18 –
Peppers Dec 3 – 17 Feb 11 – 25 –
Cucumbers – Feb 4 – 25 –
Zucchini – Feb 4 – Mar 4 –
Pumpkins – Feb 4 – 25 –
Green beans – Feb 4 – Oct 18 –
Sweet corn – Feb 4 – Mar 4 –
Basil Dec 31 – Jan 14 Feb 11 – 18 –

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 February 4January 3December 15
Fall frost before December 9December 27January 26

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 1 (February 4 in a late year), and the first one in fall around December 31.

Towns that use these dates

This is the nearest NOAA station with frost records for 4 towns.

El Centro, Calexico, Imperial, Holtville

Where these dates come from

NOAA weather station EL CENTRO 2 SSW, CA US (USC00042713), 1991–2020 climate normals. It's the nearest station for 4 zip codes, all within 26 miles:

92231, 92243, 92249, 92250

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