Frost dates for Fort Worth NAS, TX
At Fort Worth NAS, the median last spring frost (32°F) is Mar 3 and the median first fall frost is Nov 27, for a typical growing season of 270 days. For a 90% chance that the last frost has passed, wait until Mar 22. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 3Last spring frost (median)50% chance of 32°F after this date
- Mar 22Safer planting date10% chance of 32°F after this date
- Nov 27First fall frost (median)50% chance of 32°F by this date
- 270 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 | Feb 26 | Mar 16 | Apr 5 |
| 32°F | Feb 12 | Mar 3 | Mar 22 |
| 28°F | Jan 22 | Feb 17 | Mar 10 |
| 24°F | Dec 30 | Jan 31 | 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 30 | Nov 14 | Dec 2 |
| 32°F | Nov 6 | Nov 27 | Dec 17 |
| 28°F | Nov 21 | Dec 12 | Jan 9 |
| 24°F | Dec 3 | Dec 30 | Feb 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 | 216 days | 244 days | 269 days |
| 32°F | 243 days | 270 days | 296 days |
| 28°F | 268 days | 300 days | 331 days |
| 24°F | 298 days | 331 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 99% |
| 24°F | 87% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 76127 | 8b | 15 to 20°F | 2 km |
| 76114 | 8b | 15 to 20°F | 4 km |
| 76116 | 8b | 15 to 20°F | 5 km |
| 76107 | 8b | 15 to 20°F | 7 km |
| 76108 | 8b | 15 to 20°F | 7 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 USW00013911, at 32.7667, -97.4500, elevation 185 m (608 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 26.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fort Worth Nature Center (9 km)
- Fort Worth Meacham Field (10 km)
- Fort Worth Meacham Field Naaf (11 km)
- Benbrook Dam (13 km)
- Fort Worth Wsfo (16 km)
- Fort Worth Alliance Airport (26 km)
- Weatherford (30 km)
- Burleson (31 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.