Frost dates for Fort Worth Nature Center, TX
At Fort Worth Nature Center, the median last spring frost (32°F) is Mar 13 and the median first fall frost is Nov 20, for a typical growing season of 253 days. For a 90% chance that the last frost has passed, wait until Apr 2. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 13Last spring frost (median)50% chance of 32°F after this date
- Apr 2Safer planting date10% chance of 32°F after this date
- Nov 20First fall frost (median)50% chance of 32°F by this date
- 253 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 28 | Apr 16 |
| 32°F | Feb 21 | Mar 13 | Apr 2 |
| 28°F | Jan 31 | Feb 28 | Mar 22 |
| 24°F | Jan 13 | Feb 12 | Mar 9 |
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 8 | Nov 26 |
| 32°F | Nov 2 | Nov 20 | Dec 9 |
| 28°F | Nov 11 | Dec 2 | Dec 24 |
| 24°F | Nov 24 | Dec 19 | Jan 17 |
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 | 201 days | 228 days | 254 days |
| 32°F | 225 days | 253 days | 280 days |
| 28°F | 249 days | 279 days | 311 days |
| 24°F | 276 days | 312 days | 346 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 98% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 76135 | 8b | 15 to 20°F | 1 km |
| 76179 | 8b | 15 to 20°F | 8 km |
| 76020 | 8b | 15 to 20°F | 10 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 USC00413289, at 32.8472, -97.4761, elevation 188 m (615 ft).
- Data quality: Representative (10+ years), 17 years of freeze data.
- Average days per year at or below 32°F: 40.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fort Worth NAS (9 km)
- Fort Worth Meacham Field (11 km)
- Fort Worth Meacham Field Naaf (12 km)
- Fort Worth Wsfo (17 km)
- Fort Worth Alliance Airport (20 km)
- Benbrook Dam (22 km)
- Weatherford (30 km)
- Arlington Six Flags (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.