Frost dates for Terlingua Rch 2, TX
At Terlingua Rch 2, the median last spring frost (32°F) is Mar 8 and the median first fall frost is Nov 19, for a typical growing season of 254 days. For a 90% chance that the last frost has passed, wait until Mar 29. Nearby ZIP codes are in USDA hardiness zones 8a to 9a.
- Mar 8Last spring frost (median)50% chance of 32°F after this date
- Mar 29Safer planting date10% chance of 32°F after this date
- Nov 19First fall frost (median)50% chance of 32°F by this date
- 254 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 | Mar 5 | Mar 23 | Apr 10 |
| 32°F | Feb 16 | Mar 8 | Mar 29 |
| 28°F | Jan 24 | Feb 22 | Mar 14 |
| 24°F | Dec 31 | Feb 1 | Mar 4 |
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 | Oct 23 | Nov 7 | Nov 24 |
| 32°F | Nov 1 | Nov 19 | Dec 6 |
| 28°F | Nov 12 | Dec 2 | Dec 26 |
| 24°F | Nov 28 | Dec 23 | Jan 26 |
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 | 204 days | 231 days | 254 days |
| 32°F | 227 days | 254 days | 282 days |
| 28°F | 253 days | 284 days | 320 days |
| 24°F | 287 days | 326 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 93% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 79852 | 9a | 20 to 25°F | 24 km |
| 79834 | 8b | 15 to 20°F | 35 km |
| 79846 | 8b | 15 to 20°F | 57 km |
| 79842 | 8b | 15 to 20°F | 70 km |
| 79830 | 8b | 15 to 20°F | 85 km |
| 79845 | 9a | 20 to 25°F | 98 km |
| 79843 | 8a | 10 to 15°F | 107 km |
| 79848 | 8b | 15 to 20°F | 121 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 USC00418926, at 29.4744, -103.4061, elevation 1122 m (3,682 ft).
- Data quality: Representative (10+ years), 17 years of freeze data.
- Average days per year at or below 32°F: 38.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lake Ament (9 km)
- Study Butte (22 km)
- Terlingua (23 km)
- Panther Junction 2 N (24 km)
- Chisos Basin (25 km)
- Panther Junction (25 km)
- Persimmon Gap (31 km)
- Castolon (39 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.