Montana · NOAA station USC00249187
Frost dates for Yaak 9nne, MT
Yaak 9nne can freeze in any month: NOAA flags it as having a year-round risk of 32°F, too cold to compute spring and fall frost dates. The median stretch between 32°F freezes is 74 days. Nearby ZIP codes are in USDA hardiness zones 5a to 6b.
- 100%Chance of 32°F in a year
- 74 daysMedian freeze-free stretch
- 226Days at or below 32°Faverage per year
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 59935 | 6a | -10 to -5°F | 37 km |
| 59930 | 5b | -15 to -10°F | 37 km |
| 83826 | 6a | -10 to -5°F | 39 km |
| 83845 | 6b | -5 to 0°F | 41 km |
| 59917 | 5a | -20 to -15°F | 55 km |
| 59934 | 5a | -20 to -15°F | 62 km |
| 83805 | 6a | -10 to -5°F | 65 km |
| 59918 | 5a | -20 to -15°F | 66 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 USC00249187, at 48.9514, -115.6267, elevation 940 m (3,085 ft).
- Data quality: Representative (10+ years), 15 years of freeze data.
- Average days per year at or below 32°F: 226.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Eureka Ranger Station (42 km)
- Troy (56 km)
- Fortine 1 N (57 km)
- Libby 1 NE Ranger Station (61 km)
- Libby (64 km)
- Libby Dam (base) (64 km)
- Olney (89 km)
- Polebridge (100 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.