Frost Report

All states Utah

Frost dates for Enterprise, 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 21

typical year

Safe to plant

June 7

frost is over in 9 of 10 years

First fall frost

October 2

typical year

Growing season

132 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 – Apr 23 – May 7 –
Spinach – Apr 9 – 30 Aug 7 – 21
Lettuce – Apr 23 – May 14 Aug 7 – 21
Radishes – Apr 23 – Jun 4 Aug 21 – Sep 4
Onions – Apr 23 – May 7 –
Potatoes – Apr 30 – May 14 –
Carrots – Apr 30 – May 21 Jul 10 – 24
Beets – Apr 23 – May 7 Jul 24 – Aug 7
Kale Mar 12 – 26 Apr 23 – May 7 Jul 24 – Aug 7
Broccoli Mar 12 – 26 May 7 – 21 Jul 24 – Aug 7
Cabbage Feb 26 – Mar 12 Apr 23 – May 7 Jul 24 – Aug 7
Garlic – – Aug 21 – Sep 11
Warm-season crops
Tomatoes Apr 12 – 26 Jun 7 – 21 –
Peppers Apr 5 – 19 Jun 14 – 28 –
Cucumbers – Jun 7 – 28 –
Zucchini – Jun 7 – Jul 5 –
Pumpkins – Jun 7 – 28 –
Green beans – Jun 7 – Jul 24 –
Sweet corn – Jun 7 – Jul 5 –
Basil May 3 – 17 Jun 14 – 21 –

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 7May 21May 4
Fall frost before September 21October 2October 15

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 6 (May 26 in a late year), and the first one in fall around October 9.

Towns that use these dates

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

Enterprise

Where these dates come from

NOAA weather station ENTERPRISE, UT US (USC00422558), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 11 miles:

84722, 84725

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