Frost Report

All states Arizona

Frost dates for Eloy, 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

February 28

typical year

Safe to plant

March 14

frost is over in 9 of 10 years

First fall frost

November 21

typical year

Growing season

266 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 31 – Feb 14 –
Spinach – Jan 17 – Feb 7 Sep 26 – Oct 10
Lettuce – Jan 31 – Feb 21 Sep 26 – Oct 10
Radishes – Jan 31 – Mar 14 Oct 10 – 24
Onions – Jan 31 – Feb 14 –
Potatoes – Feb 7 – 21 –
Carrots – Feb 7 – 28 Aug 29 – Sep 12
Beets – Jan 31 – Feb 14 Sep 12 – 26
Kale Dec 20 – Jan 3 Jan 31 – Feb 14 Sep 12 – 26
Broccoli Dec 20 – Jan 3 Feb 14 – 28 Sep 12 – 26
Cabbage Dec 6 – 20 Jan 31 – Feb 14 Sep 12 – 26
Garlic – – Oct 10 – 31
Warm-season crops
Tomatoes Jan 17 – 31 Mar 14 – 28 –
Peppers Jan 10 – 24 Mar 21 – Apr 4 –
Cucumbers – Mar 14 – Apr 4 –
Zucchini – Mar 14 – Apr 11 –
Pumpkins – Mar 14 – Apr 4 –
Green beans – Mar 14 – Sep 12 –
Sweet corn – Mar 14 – Apr 11 –
Basil Feb 7 – 21 Mar 21 – 28 –

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 March 14February 28February 3
Fall frost before November 5November 21December 6

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 February 6 (March 1 in a late year), and the first one in fall around December 4.

Towns that use these dates

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

Eloy

Where these dates come from

NOAA weather station ARIZONA CITY, AZ US (USC00020404), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 9 miles:

85123, 85131

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