Frost dates for Copper Breaks State Park, TX
At Copper Breaks State Park, the median last spring frost (32°F) is Apr 1 and the median first fall frost is Nov 4, for a typical growing season of 217 days. For a 90% chance that the last frost has passed, wait until Apr 20. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.
- Apr 1Last spring frost (median)50% chance of 32°F after this date
- Apr 20Safer planting date10% chance of 32°F after this date
- Nov 4First fall frost (median)50% chance of 32°F by this date
- 217 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 25 | Apr 13 | Apr 27 |
| 32°F | Mar 9 | Apr 1 | Apr 20 |
| 28°F | Feb 24 | Mar 14 | Apr 5 |
| 24°F | Feb 12 | Mar 1 | Mar 22 |
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 12 | Oct 26 | Nov 10 |
| 32°F | Oct 18 | Nov 4 | Nov 21 |
| 28°F | Oct 27 | Nov 14 | Dec 3 |
| 24°F | Nov 6 | Nov 27 | Dec 16 |
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 | 176 days | 196 days | 217 days |
| 32°F | 191 days | 217 days | 244 days |
| 28°F | 214 days | 242 days | 271 days |
| 24°F | 239 days | 268 days | 295 days |
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 |
|---|---|---|---|
| 79252 | 7b | 5 to 10°F | 22 km |
| 79225 | 7b | 5 to 10°F | 27 km |
| 79227 | 8a | 10 to 15°F | 27 km |
| 76384 | 8a | 10 to 15°F | 39 km |
| 73537 | 7b | 5 to 10°F | 40 km |
| 79247 | 7b | 5 to 10°F | 46 km |
| 79248 | 8a | 10 to 15°F | 48 km |
| 73560 | 7b | 5 to 10°F | 55 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 USC00411995, at 34.1122, -99.7430, elevation 450 m (1,475 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 84.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Quanah 2 SW (18 km)
- Vernon (39 km)
- Truscott 3 W (41 km)
- Paducah (53 km)
- Childress 2 (57 km)
- Childress Muni Airport (61 km)
- Paducah 15 S (61 km)
- Seymour 3nw (67 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.