Frost dates 2026–2027

Frost dates for Craig, Colorado

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Craig Moffat County Airport, 2.4 mi away (close match).

Last spring frostJun 6
First fall frostSep 12
96 frost-free days
Last spring frostJun 61 year in 10 after Jun 24
First fall frostSep 121 year in 10 by Aug 31
Growing season96 daysbetween median 32°F dates
Hardiness zoneZone 5b−15 to −10°F average extreme low

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Will it freeze in Craig in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 26°F (Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST).

Tonight: forecast low 26°F. Hard freeze.

NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.

7 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Craig

The median first fall hard-freeze date (28°F) is September 23, from NOAA’s 1991–2020 Climate Normals at Craig Moffat County Airport. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible rare in most years rare in most years 66 days
32°F freeze May 21 · Jun 6 · Jun 24 Aug 31 · Sep 12 · Sep 25 96 days
28°F hard freeze May 4 · May 20 · Jun 6 Sep 10 · Sep 23 · Oct 6 125 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024046. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Craig Moffat County Airport

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Craig, CO come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Craig Moffat County Airport (station USW00024046, elevation 6,186 ft), 2.4 mi from Craig. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Craig

CityDistanceLast spring frostFirst fall frost
Steamboat Springs, CO 39 mi Jun 9 Sep 12
Glenwood Springs, CO 68 mi May 13 Oct 3
Rifle, CO 68 mi May 11 Oct 4
Gypsum, CO 70 mi May 1 Oct 14
Eagle, CO 72 mi May 1 Oct 14
Carbondale, CO 80 mi May 13 Oct 3
Avon, CO 82 mi Jun 21 Sep 7
Rawlins, WY 89 mi May 17 Oct 2
Silverthorne, CO 98 mi Jun 21 Sep 7
Aspen, CO 99 mi Jun 2 Sep 23

Frequently asked questions

When is the last frost in Craig?

On average, the last spring frost (32°F) in Craig is around June 6. In about 1 year in 10 it comes after June 24, and in 9 years in 10 it comes after May 21.

When is the first frost in Craig?

The first fall frost (32°F) usually arrives around September 12. There’s a 10% chance of a freeze by August 31 and a 90% chance by September 25.

What growing zone is Craig?

Craig is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 81638. See growing zones in Colorado.

More: all Colorado frost dates · Colorado growing zones · frost vs. freeze