Frost Report

All states Arizona

Frost dates for Quartzsite, AZ

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 28

typical year

Safe to plant

February 24

frost is over in 9 of 10 years

First fall frost

December 6

typical year

Growing season

315 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 31 – Jan 14 –
Spinach – Dec 17 – Jan 7 Oct 11 – 25
Lettuce – Dec 31 – Jan 21 Oct 11 – 25
Radishes – Dec 31 – Feb 11 Oct 25 – Nov 8
Onions – Dec 31 – Jan 14 –
Potatoes – Jan 7 – 21 –
Carrots – Jan 7 – 28 Sep 13 – 27
Beets – Dec 31 – Jan 14 Sep 27 – Oct 11
Kale Nov 19 – Dec 3 Dec 31 – Jan 14 Sep 27 – Oct 11
Broccoli Nov 19 – Dec 3 Jan 14 – 28 Sep 27 – Oct 11
Cabbage Nov 5 – 19 Dec 31 – Jan 14 Sep 27 – Oct 11
Garlic – – Oct 25 – Nov 15
Warm-season crops
Tomatoes Dec 30 – Jan 13 Feb 24 – Mar 10 –
Peppers Dec 23 – Jan 6 Mar 3 – 17 –
Cucumbers – Feb 24 – Mar 17 –
Zucchini – Feb 24 – Mar 24 –
Pumpkins – Feb 24 – Mar 17 –
Green beans – Feb 24 – Sep 27 –
Sweet corn – Feb 24 – Mar 24 –
Basil Jan 20 – Feb 3 Mar 3 – 10 –

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 24January 28December 31
Fall frost before November 22December 6December 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 7 (February 5 in a late year), and the first one in fall around December 21.

Towns that use these dates

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

Quartzsite

Where these dates come from

NOAA weather station QUARTZSITE, AZ US (USC00026865), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 5 miles:

85346

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