Frost dates for 81225Crested Butte, CO
Frost is possible in any month near Crested Butte, based on NOAA 1991-2020 records for the Crested Butte, 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) | — | — | 18 days | 100% |
| Frost / freeze (32°F) | — | — | 47 days | 100% |
| Hard freeze (28°F) | Jun 2 · Jun 14 · Jun 29 | Aug 26 · Sep 8 · Sep 18 | 83 days | 100% |
Where these dates come from
ZIP code 81225 is matched to the NOAA station Crested Butte, CO, 3.2 km away, at 8,868 ft elevation (654 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Crested Butte, CO (used) | 8,868 ft | — | — |
| Taylor Park, CO | 9,180 ft | Jun 20 | Sep 8 |
| Aspen 1Sw, CO | 8,175 ft | Jun 2 | Sep 23 |
| Aspen Pitkin Co Ap, CO | 7,721 ft | May 31 | Sep 23 |
Frost dates near Crested Butte
- Crested Butte, CO 81224 · last —, first —
- Almont, CO 81210 · last Jun 20, first Sep 8
- Aspen, CO 81611 · last May 31, first Sep 23
- Snowmass Village, CO 81615 · last Jun 2, first Sep 23
- Somerset, CO 81434 · last May 31, first Sep 23
- Snowmass, CO 81654 · last —, first —
- Gunnison, CO 81230 · last —, first —
- Woody Creek, CO 81656 · last May 31, first Sep 23
Frequently asked questions
- When is the last frost in Crested Butte, CO?
- Frost is possible in any month at the nearest NOAA station (Crested Butte, CO), so there is no reliable average last frost date.
- When is the first frost in Crested Butte, 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.