Frost Report

All states Utah

Frost dates for Manila, 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 22

typical year

Safe to plant

June 11

frost is over in 9 of 10 years

First fall frost

September 29

typical year

Growing season

128 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 24 – May 8 –
Spinach – Apr 10 – May 1 Aug 4 – 18
Lettuce – Apr 24 – May 15 Aug 4 – 18
Radishes – Apr 24 – Jun 5 Aug 18 – Sep 1
Onions – Apr 24 – May 8 –
Potatoes – May 1 – 15 –
Carrots – May 1 – 22 Jul 7 – 21
Beets – Apr 24 – May 8 Jul 21 – Aug 4
Kale Mar 13 – 27 Apr 24 – May 8 Jul 21 – Aug 4
Broccoli Mar 13 – 27 May 8 – 22 Jul 21 – Aug 4
Cabbage Feb 27 – Mar 13 Apr 24 – May 8 Jul 21 – Aug 4
Garlic – – Aug 18 – Sep 8
Warm-season crops
Tomatoes Apr 16 – 30 Jun 11 – 25 –
Peppers Apr 9 – 23 Jun 18 – Jul 2 –
Cucumbers – Jun 11 – Jul 2 –
Zucchini – Jun 11 – Jul 9 –
Pumpkins – Jun 11 – Jul 2 –
Green beans – Jun 11 – Jul 21 –
Sweet corn – Jun 11 – Jul 9 –
Basil May 7 – 21 Jun 18 – 25 –

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 11May 22May 4
Fall frost before September 15September 29October 14

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 5 (May 27 in a late year), and the first one in fall around October 11.

Towns that use these dates

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

Manila

Where these dates come from

NOAA weather station MANILA, UT US (USC00425377), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 11 miles:

82938, 84046

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