Frost Report

All states Utah

Frost dates for Enterprise Beryl Jct, UT

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

May 31

typical year

Safe to plant

June 20

frost is over in 9 of 10 years

First fall frost

September 20

typical year

Growing season

110 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 – May 3 – 17 –
Spinach – Apr 19 – May 10 Jul 26 – Aug 9
Lettuce – May 3 – 24 Jul 26 – Aug 9
Radishes – May 3 – Jun 14 Aug 9 – 23
Onions – May 3 – 17 –
Potatoes – May 10 – 24 –
Carrots – May 10 – 31 Jun 28 – Jul 12
Beets – May 3 – 17 Jul 12 – 26
Kale Mar 22 – Apr 5 May 3 – 17 Jul 12 – 26
Broccoli Mar 22 – Apr 5 May 17 – 31 Jul 12 – 26
Cabbage Mar 8 – 22 May 3 – 17 Jul 12 – 26
Garlic – – Aug 9 – 30
Warm-season crops
Tomatoes Apr 25 – May 9 Jun 20 – Jul 4 –
Peppers Apr 18 – May 2 Jun 27 – Jul 11 –
Cucumbers – Jun 20 – Jul 11 –
Zucchini – Jun 20 – Jul 18 –
Pumpkins Season usually too short. Try a quick variety or row covers.
Green beans – Jun 20 – Jul 12 –
Sweet corn – Jun 20 – Jul 18 –
Basil May 16 – 30 Jun 27 – Jul 4 –

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 June 20May 31May 16
Fall frost before September 6September 20October 1

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 May 17 (June 3 in a late year), and the first one in fall around September 29.

Where these dates come from

NOAA weather station ENTERPRISE BERYL JCT, UT US (USC00422561), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 8 miles:

84714, 84756

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