Frost Report

All states Colorado

Frost dates for Cokedale, 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 11

typical year

Safe to plant

May 25

frost is over in 9 of 10 years

First fall frost

October 4

typical year

Growing season

145 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 13 – 27 –
Spinach – Mar 30 – Apr 20 Aug 9 – 23
Lettuce – Apr 13 – May 4 Aug 9 – 23
Radishes – Apr 13 – May 25 Aug 23 – Sep 6
Onions – Apr 13 – 27 –
Potatoes – Apr 20 – May 4 –
Carrots – Apr 20 – May 11 Jul 12 – 26
Beets – Apr 13 – 27 Jul 26 – Aug 9
Kale Mar 2 – 16 Apr 13 – 27 Jul 26 – Aug 9
Broccoli Mar 2 – 16 Apr 27 – May 11 Jul 26 – Aug 9
Cabbage Feb 16 – Mar 2 Apr 13 – 27 Jul 26 – Aug 9
Garlic – – Aug 23 – Sep 13
Warm-season crops
Tomatoes Mar 30 – Apr 13 May 25 – Jun 8 –
Peppers Mar 23 – Apr 6 Jun 1 – 15 –
Cucumbers – May 25 – Jun 15 –
Zucchini – May 25 – Jun 22 –
Pumpkins – May 25 – Jun 15 –
Green beans – May 25 – Jul 26 –
Sweet corn – May 25 – Jun 22 –
Basil Apr 20 – May 4 Jun 1 – 8 –

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 25May 11April 29
Fall frost before September 22October 4October 17

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 30 (May 14 in a late year), and the first one in fall around October 14.

Towns that use these dates

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

Cokedale, Starkville

Where these dates come from

NOAA weather station TRINIDAD LAKE, CO US (USC00058436), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 22 miles:

81024, 81091

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