Frost dates for Livingston 12 S, MT
At Livingston 12 S, the median last spring frost (32°F) is May 19 and the median first fall frost is Sep 25, for a typical growing season of 125 days. For a 90% chance that the last frost has passed, wait until Jun 11. Nearby ZIP codes are in USDA hardiness zone 5a.
- May 19Last spring frost (median)50% chance of 32°F after this date
- Jun 11Safer planting date10% chance of 32°F after this date
- Sep 25First fall frost (median)50% chance of 32°F by this date
- 125 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | May 21 | Jun 8 | Jun 30 |
| 32°F | May 5 | May 19 | Jun 11 |
| 28°F | Apr 18 | May 4 | May 19 |
| 24°F | Apr 3 | Apr 20 | May 7 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Aug 26 | Sep 11 | Sep 28 |
| 32°F | Sep 7 | Sep 25 | Oct 7 |
| 28°F | Sep 21 | Oct 5 | Oct 21 |
| 24°F | Sep 30 | Oct 16 | Nov 2 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 66 days | 93 days | 118 days |
| 32°F | 99 days | 125 days | 146 days |
| 28°F | 132 days | 152 days | 175 days |
| 24°F | 153 days | 176 days | 201 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 59047 | 5a | -20 to -15°F | 9 km |
| 59065 | 5a | -20 to -15°F | 27 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00245080, at 45.4956, -110.5589, elevation 1537 m (5,044 ft).
- Data quality: Standard (24+ years of data), 24 years of freeze data.
- Average days per year at or below 32°F: 158.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Livingston Mission Field (24 km)
- Bozeman Montana State Univ (42 km)
- Bozeman 6 W Exp. Farm (50 km)
- Gardiner (53 km)
- Wilsall 1s (55 km)
- Bozeman Gallatin Field (57 km)
- Nye #2 (59 km)
- Wilsall 8 ENE (60 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.