Frost dates for 59639Lincoln, MT
Frost is possible in any month near Lincoln, based on NOAA 1991-2020 records for the Lincoln Rs, MT 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) | — | — | 31 days | 100% |
| Frost / freeze (32°F) | — | — | 65 days | 100% |
| Hard freeze (28°F) | May 11 · May 26 · Jun 15 | Aug 25 · Sep 11 · Sep 30 | 105 days | 100% |
Where these dates come from
ZIP code 59639 is matched to the NOAA station Lincoln Rs, MT, 0.8 km away, at 4,575 ft elevation (11 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Lincoln Rs, MT (used) | 4,575 ft | — | — |
| Ovando 9 Sse, MT | 4,325 ft | — | — |
| Rogers Pass 9 Nne, MT | 4,200 ft | May 21 | Sep 15 |
| Austin 1 W, MT | 4,851 ft | Jun 4 | Sep 14 |
Frost dates near Lincoln
- Helmville, MT 59843 · last —, first —
- Ovando, MT 59854 · last —, first —
- Marysville, MT 59640 · last Jun 4, first Sep 14
- Canyon Creek, MT 59633 · last Jun 4, first Sep 14
- Avon, MT 59713 · last Jun 4, first Sep 14
- Garrison, MT 59731 · last —, first —
- Wolf Creek, MT 59648 · last May 21, first Sep 15
- Gold Creek, MT 59733 · last —, first —
Frequently asked questions
- When is the last frost in Lincoln, MT?
- Frost is possible in any month at the nearest NOAA station (Lincoln Rs, MT), so there is no reliable average last frost date.
- When is the first frost in Lincoln, MT?
- 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.