Frost Report

All states Utah

Frost dates for North Logan, 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

April 30

typical year

Safe to plant

May 19

frost is over in 9 of 10 years

First fall frost

October 16

typical year

Growing season

166 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 2 – 16 –
Spinach – Mar 19 – Apr 9 Aug 21 – Sep 4
Lettuce – Apr 2 – 23 Aug 21 – Sep 4
Radishes – Apr 2 – May 14 Sep 4 – 18
Onions – Apr 2 – 16 –
Potatoes – Apr 9 – 23 –
Carrots – Apr 9 – 30 Jul 24 – Aug 7
Beets – Apr 2 – 16 Aug 7 – 21
Kale Feb 19 – Mar 5 Apr 2 – 16 Aug 7 – 21
Broccoli Feb 19 – Mar 5 Apr 16 – 30 Aug 7 – 21
Cabbage Feb 5 – 19 Apr 2 – 16 Aug 7 – 21
Garlic – – Sep 4 – 25
Warm-season crops
Tomatoes Mar 24 – Apr 7 May 19 – Jun 2 –
Peppers Mar 17 – 31 May 26 – Jun 9 –
Cucumbers – May 19 – Jun 9 –
Zucchini – May 19 – Jun 16 –
Pumpkins – May 19 – Jun 9 –
Green beans – May 19 – Aug 7 –
Sweet corn – May 19 – Jun 16 –
Basil Apr 14 – 28 May 26 – Jun 2 –

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 May 19April 30April 14
Fall frost before October 1October 16October 29

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 April 15 (May 2 in a late year), and the first one in fall around October 27.

Towns that use these dates

This is the nearest NOAA station with frost records for 3 towns.

North Logan, Providence, River Heights

Where these dates come from

NOAA weather station LOGAN UTAH ST UNIV, UT US (USC00425186), 1991–2020 climate normals. It's the nearest station for 5 zip codes, all within 13 miles:

84319, 84321, 84322, 84332, 84341

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