Frost dates for 82063Jelm, WY
Frost is possible in any month near Jelm, based on NOAA 1991-2020 records for the Hohnholz Rch, 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) | — | — | 56 days | 100% |
| Hard freeze (28°F) | May 26 · Jun 8 · Jun 27 | Aug 24 · Sep 6 · Sep 20 | 90 days | 100% |
Where these dates come from
ZIP code 82063 is matched to the NOAA station Hohnholz Rch, CO, 10 km away, at 7,797 ft elevation (215 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hohnholz Rch, CO (used) | 7,797 ft | — | — |
| Centennial 1Ne, WY | 8,170 ft | Jun 2 | Sep 19 |
| Laramie Rgnl Ap, WY | 7,266 ft | Jun 2 | Sep 15 |
| Walden, CO | 8,056 ft | — | — |
Frost dates near Jelm
- Centennial, WY 82055 · last Jun 2, first Sep 15
- Cowdrey, CO 80434 · last —, first —
- Red Feather Lakes, CO 80545 · last —, first —
- Laramie, WY 82073 · last Jun 7, first Sep 4
- Walden, CO 80480 · last —, first —
- Tie Siding, WY 82084 · last —, first —
- Livermore, CO 80536 · last May 31, first Sep 19
- Buford, WY 82052 · last May 31, first Sep 19
Frequently asked questions
- When is the last frost in Jelm, WY?
- Frost is possible in any month at the nearest NOAA station (Hohnholz Rch, CO), so there is no reliable average last frost date.
- When is the first frost in Jelm, WY?
- 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.