Frost dates for 81230Gunnison, CO
Frost is possible in any month near Gunnison, based on NOAA 1991-2020 records for the Gunnison 3Sw, CO station.
Frost is possible in any month. Even summer nights can drop to freezing at this station, so protect tender plants whenever cold nights are forecast.
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | — | — | 47 days | 100% |
| Frost / freeze (32°F) | — | — | 75 days | 100% |
| Hard freeze (28°F) | May 21 · Jun 4 · Jun 21 | Sep 5 · Sep 17 · Sep 27 | 102 days | 100% |
Where these dates come from
ZIP code 81230 is matched to the NOAA station Gunnison 3Sw, CO, 4.3 km away, at 7,622 ft elevation (91 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Gunnison 3Sw, CO (used) | 7,622 ft | — | — |
| Cochetopa Creek, CO | 8,006 ft | Jun 21 | Sep 5 |
| Blue Mesa Lake, CO | 7,568 ft | Jun 9 | Sep 16 |
| Crested Butte, CO | 8,868 ft | — | — |
Frost dates near Gunnison
- Gunnison, CO 81231 · last —, first —
- Parlin, CO 81239 · last Jun 20, first Sep 8
- Ohio City, CO 81237 · last Jun 20, first Sep 8
- Powderhorn, CO 81243 · last Jun 21, first Sep 5
- Crested Butte, CO 81224 · last —, first —
- Pitkin, CO 81241 · last Jun 20, first Sep 8
- Almont, CO 81210 · last Jun 20, first Sep 8
- Sargents, CO 81248 · last —, first —
Frequently asked questions
- When is the last frost in Gunnison, CO?
- Frost is possible in any month at the nearest NOAA station (Gunnison 3Sw, CO), so there is no reliable average last frost date.
- When is the first frost in Gunnison, CO?
- Frost is possible in any month at the nearest NOAA station.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.