Frost Report

All states Montana

Frost dates for Livingston, MT

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 27

typical year

Safe to plant

June 14

frost is over in 9 of 10 years

First fall frost

September 14

typical year

Growing season

108 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 29 – May 13 –
Spinach – Apr 15 – May 6 Jul 20 – Aug 3
Lettuce – Apr 29 – May 20 Jul 20 – Aug 3
Radishes – Apr 29 – Jun 10 Aug 3 – 17
Onions – Apr 29 – May 13 –
Potatoes – May 6 – 20 –
Carrots – May 6 – 27 Jun 22 – Jul 6
Beets – Apr 29 – May 13 Jul 6 – 20
Kale Mar 18 – Apr 1 Apr 29 – May 13 Jul 6 – 20
Broccoli Mar 18 – Apr 1 May 13 – 27 Jul 6 – 20
Cabbage Mar 4 – 18 Apr 29 – May 13 Jul 6 – 20
Garlic – – Aug 3 – 24
Warm-season crops
Tomatoes Apr 19 – May 3 Jun 14 – 28 –
Peppers Apr 12 – 26 Jun 21 – Jul 5 –
Cucumbers – Jun 14 – Jul 5 –
Zucchini – Jun 14 – Jul 12 –
Pumpkins Season usually too short. Try a quick variety or row covers.
Green beans – Jun 14 – Jul 6 –
Sweet corn – Jun 14 – Jul 12 –
Basil May 10 – 24 Jun 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 June 14May 27May 13
Fall frost before August 27September 14September 30

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 13 (May 30 in a late year), and the first one in fall around September 26.

Towns that use these dates

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

Livingston

Where these dates come from

NOAA weather station LIVINGSTON MISSION FLD, MT US (USW00024150), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 13 miles:

59082

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