Frost Report

All states Colorado

Frost dates for Cheyenne Wells, CO

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 1

typical year

Safe to plant

May 17

frost is over in 9 of 10 years

First fall frost

October 14

typical year

Growing season

165 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 3 – 17 –
Spinach – Mar 20 – Apr 10 Aug 19 – Sep 2
Lettuce – Apr 3 – 24 Aug 19 – Sep 2
Radishes – Apr 3 – May 15 Sep 2 – 16
Onions – Apr 3 – 17 –
Potatoes – Apr 10 – 24 –
Carrots – Apr 10 – May 1 Jul 22 – Aug 5
Beets – Apr 3 – 17 Aug 5 – 19
Kale Feb 20 – Mar 6 Apr 3 – 17 Aug 5 – 19
Broccoli Feb 20 – Mar 6 Apr 17 – May 1 Aug 5 – 19
Cabbage Feb 6 – 20 Apr 3 – 17 Aug 5 – 19
Garlic – – Sep 2 – 23
Warm-season crops
Tomatoes Mar 22 – Apr 5 May 17 – 31 –
Peppers Mar 15 – 29 May 24 – Jun 7 –
Cucumbers – May 17 – Jun 7 –
Zucchini – May 17 – Jun 14 –
Pumpkins – May 17 – Jun 7 –
Green beans – May 17 – Aug 5 –
Sweet corn – May 17 – Jun 14 –
Basil Apr 12 – 26 May 24 – 31 –

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 17May 1April 18
Fall frost before October 1October 14October 25

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 22 (May 6 in a late year), and the first one in fall around October 22.

Towns that use these dates

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

Cheyenne Wells

Where these dates come from

NOAA weather station CHEYENNE WELLS 2NE, CO US (USC00051564), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 6 miles:

80810

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