Frost dates for 59053Martinsdale, MT
Frost is possible in any month near Martinsdale, based on NOAA 1991-2020 records for the Lennep 5 Sw, 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) | — | — | 33 days | 100% |
| Frost / freeze (32°F) | — | — | 65 days | 100% |
| Hard freeze (28°F) | May 17 · Jun 1 · Jun 17 | Aug 24 · Sep 10 · Sep 26 | 100 days | 100% |
Where these dates come from
ZIP code 59053 is matched to the NOAA station Lennep 5 Sw, MT, 16.7 km away, at 5,600 ft elevation (178 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Lennep 5 Sw, MT (used) | 5,600 ft | — | — |
| Martinsdale 3 Nnw, MT | 4,800 ft | Jun 3 | Sep 8 |
| White Sulphur Springs #2, MT | 5,040 ft | Jun 4 | Sep 11 |
| Harlowton 11Nw, MT | 4,954 ft | May 30 | Sep 20 |
Frost dates near Martinsdale
- Two Dot, MT 59085 · last May 23, first Sep 16
- Ringling, MT 59642 · last —, first —
- Harlowton, MT 59036 · last May 23, first Sep 16
- White Sulphur Springs, MT 59645 · last Jun 4, first Sep 11
- Neihart, MT 59465 · last Jun 6, first Sep 12
- Wilsall, MT 59086 · last Jun 4, first Sep 6
- Buffalo, MT 59418 · last May 28, first Sep 20
- Judith Gap, MT 59453 · last Jun 1, first Sep 15
Frequently asked questions
- When is the last frost in Martinsdale, MT?
- Frost is possible in any month at the nearest NOAA station (Lennep 5 Sw, MT), so there is no reliable average last frost date.
- When is the first frost in Martinsdale, 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.