Frost dates for 81435Telluride, CO
Frost is possible in any month near Telluride, based on NOAA 1991-2020 records for the Telluride 4Wnw, 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) | — | — | 26 days | 100% |
| Frost / freeze (32°F) | — | — | 60 days | 100% |
| Hard freeze (28°F) | May 31 · Jun 15 · Jun 30 | Sep 2 · Sep 16 · Sep 29 | 91 days | 100% |
Where these dates come from
ZIP code 81435 is matched to the NOAA station Telluride 4Wnw, CO, 4.7 km away, at 8,646 ft elevation (81 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Telluride 4Wnw, CO (used) | 8,646 ft | — | — |
| Ouray, CO | 7,840 ft | May 17 | Oct 1 |
| Ouray #2, CO | 7,718 ft | May 18 | Oct 4 |
| Silverton, CO | 9,286 ft | — | — |
Frost dates near Telluride
- Ophir, CO 81426 · last —, first —
- Ouray, CO 81427 · last May 17, first Oct 1
- Silverton, CO 81433 · last —, first —
- Placerville, CO 81430 · last May 26, first Sep 29
- Ridgway, CO 81432 · last Jun 11, first Sep 13
- Rico, CO 81332 · last —, first —
- Norwood, CO 81423 · last May 25, first Oct 1
- Lake City, CO 81235 · last Jun 15, first Sep 11
Frequently asked questions
- When is the last frost in Telluride, CO?
- Frost is possible in any month at the nearest NOAA station (Telluride 4Wnw, CO), so there is no reliable average last frost date.
- When is the first frost in Telluride, 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.