Frost dates for Rio Grande Village, TX
At Rio Grande Village, the median last spring frost (32°F) is Mar 6 and the median first fall frost is Nov 19, for a typical growing season of 256 days. For a 90% chance that the last frost has passed, wait until Mar 23. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Mar 6Last spring frost (median)50% chance of 32°F after this date
- Mar 23Safer planting date10% chance of 32°F after this date
- Nov 19First fall frost (median)50% chance of 32°F by this date
- 256 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 3 | Mar 20 | Apr 6 |
| 32°F | Feb 14 | Mar 6 | Mar 23 |
| 28°F | Jan 31 | Feb 22 | Mar 12 |
| 24°F | Jan 12 | Feb 3 | Mar 1 |
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 29 | Nov 11 | Nov 23 |
| 32°F | Nov 5 | Nov 19 | Dec 2 |
| 28°F | Nov 14 | Nov 29 | Dec 11 |
| 24°F | Nov 21 | Dec 9 | Dec 27 |
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 | 211 days | 234 days | 256 days |
| 32°F | 232 days | 256 days | 279 days |
| 28°F | 254 days | 278 days | 304 days |
| 24°F | 279 days | 310 days | 337 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 |
|---|---|---|---|
| 79834 | 8b | 15 to 20°F | 29 km |
| 79852 | 9a | 20 to 25°F | 66 km |
| 79842 | 8b | 15 to 20°F | 92 km |
| 79846 | 8b | 15 to 20°F | 102 km |
| 79848 | 8b | 15 to 20°F | 117 km |
| 79830 | 8b | 15 to 20°F | 131 km |
| 79845 | 9a | 20 to 25°F | 148 km |
| 78871 | 8b | 15 to 20°F | 152 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 USC00417624, at 29.1853, -102.9622, elevation 566 m (1,858 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 52.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Boquillas Ranger Station (0 km)
- Panther Junction (28 km)
- Panther Junction 2 N (30 km)
- Chisos Basin (34 km)
- Terlingua Rch 2 (54 km)
- Castolon (54 km)
- Persimmon Gap (57 km)
- Study Butte (59 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.