Frost dates for Concho Park/ivie Rsvr, TX
At Concho Park/ivie Rsvr, the median last spring frost (32°F) is Mar 18 and the median first fall frost is Nov 12, for a typical growing season of 239 days. For a 90% chance that the last frost has passed, wait until Apr 7. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 18Last spring frost (median)50% chance of 32°F after this date
- Apr 7Safer planting date10% chance of 32°F after this date
- Nov 12First fall frost (median)50% chance of 32°F by this date
- 239 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 14 | Apr 4 | Apr 23 |
| 32°F | Feb 28 | Mar 18 | Apr 7 |
| 28°F | Feb 15 | Mar 5 | Mar 24 |
| 24°F | Jan 26 | Feb 21 | Mar 13 |
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 21 | Nov 4 | Nov 18 |
| 32°F | Oct 30 | Nov 12 | Nov 29 |
| 28°F | Nov 6 | Nov 24 | Dec 10 |
| 24°F | Nov 17 | Dec 6 | Jan 1 |
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 | 190 days | 214 days | 239 days |
| 32°F | 214 days | 239 days | 262 days |
| 28°F | 236 days | 262 days | 287 days |
| 24°F | 261 days | 290 days | 324 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 |
|---|---|---|---|
| 76888 | 8b | 15 to 20°F | 9 km |
| 76862 | 8b | 15 to 20°F | 15 km |
| 76836 | 8b | 15 to 20°F | 18 km |
| 76845 | 8b | 15 to 20°F | 21 km |
| 76873 | 8b | 15 to 20°F | 32 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 USC00411934, at 31.5517, -99.7083, elevation 478 m (1,569 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 49.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Paint Rock (22 km)
- Ballinger 2 NW (33 km)
- Hords Creek Dam (36 km)
- Eden (39 km)
- Coleman (40 km)
- Brady (57 km)
- Wingate (67 km)
- Menard (72 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.