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Will it freeze in Gunnison in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 21°F (Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST).
Tonight: forecast low 21°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.
- Tonight 21°F Hard freeze · Mostly Cloudy then Areas Of Fog
- Fri, Nov 6 21°F Hard freeze · Partly Cloudy
- Sat, Nov 7 20°F Hard freeze · Clear
- Sun, Nov 8 22°F Hard freeze · Clear
- Mon, Nov 9 25°F Hard freeze · Mostly Clear
- Tue, Nov 10 24°F Hard freeze · Partly Cloudy
- Wed, Nov 11 24°F Hard freeze · Mostly Clear
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 Gunnison
The median first fall hard-freeze date (28°F) is September 16, from NOAA’s 1991–2020 Climate Normals at Cochetopa Creek. This is the 50% probability date, not a forecast for this year.
| Temperature | Last 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 | 44 days |
| 32°F freeze | Jun 7 · Jun 21 · Jul 7 | Aug 21 · Sep 5 · Sep 16 | 74 days |
| 28°F hard freeze | May 24 · Jun 7 · Jun 22 | Sep 4 · Sep 16 · Sep 26 | 100 days |
Average high temperature by month
1991–2020 normals at Cochetopa Creek
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 Gunnison, CO come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Cochetopa Creek (station USC00051713, elevation 8,006 ft), 11 mi from Gunnison. 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 Gunnison
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Aspen, CO | 45 mi | Jun 2 | Sep 23 |
| Salida, CO | 50 mi | May 29 | Sep 20 |
| Montrose, CO | 51 mi | Apr 28 | Oct 14 |
| Carbondale, CO | 61 mi | May 13 | Oct 3 |
| Delta, CO | 65 mi | May 1 | Oct 7 |
| Glenwood Springs, CO | 73 mi | May 13 | Oct 3 |
| Gypsum, CO | 74 mi | May 1 | Oct 14 |
| Eagle, CO | 76 mi | May 1 | Oct 14 |
| Avon, CO | 79 mi | Jun 21 | Sep 7 |
| Breckenridge, CO | 81 mi | Jun 21 | Sep 7 |
Frequently asked questions
When is the last frost in Gunnison?
On average, the last spring frost (32°F) in Gunnison is around June 21. In about 1 year in 10 it comes after July 7, and in 9 years in 10 it comes after June 7.
When is the first frost in Gunnison?
The first fall frost (32°F) usually arrives around September 5. There’s a 10% chance of a freeze by August 21 and a 90% chance by September 16.
What growing zone is Gunnison?
Gunnison 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 81230. See growing zones in Colorado.
More: all Colorado frost dates · Colorado growing zones · frost vs. freeze