Frost Report

All states Wyoming

Frost dates for Baggs, WY

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

June 1

typical year

Safe to plant

June 18

frost is over in 9 of 10 years

First fall frost

September 18

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 – May 4 – 18 –
Spinach – Apr 20 – May 11 Jul 24 – Aug 7
Lettuce – May 4 – 25 Jul 24 – Aug 7
Radishes – May 4 – Jun 15 Aug 7 – 21
Onions – May 4 – 18 –
Potatoes – May 11 – 25 –
Carrots – May 11 – Jun 1 Jun 26 – Jul 10
Beets – May 4 – 18 Jul 10 – 24
Kale Mar 23 – Apr 6 May 4 – 18 Jul 10 – 24
Broccoli Mar 23 – Apr 6 May 18 – Jun 1 Jul 10 – 24
Cabbage Mar 9 – 23 May 4 – 18 Jul 10 – 24
Garlic – – Aug 7 – 28
Warm-season crops
Tomatoes Apr 23 – May 7 Jun 18 – Jul 2 –
Peppers Apr 16 – 30 Jun 25 – Jul 9 –
Cucumbers – Jun 18 – Jul 9 –
Zucchini – Jun 18 – Jul 16 –
Pumpkins Season usually too short. Try a quick variety or row covers.
Green beans – Jun 18 – Jul 10 –
Sweet corn – Jun 18 – Jul 16 –
Basil May 14 – 28 Jun 25 – Jul 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 June 18June 1May 15
Fall frost before September 4September 18October 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 13 (May 31 in a late year), and the first one in fall around September 28.

Towns that use these dates

This is the nearest NOAA station with frost records for 2 towns.

Baggs, Dixon

Where these dates come from

NOAA weather station BAGGS, WY US (USC00480484), 1991–2020 climate normals. It's the nearest station for 4 zip codes, all within 24 miles:

81653, 82321, 82323, 82332

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