Frost dates for Dallas Fort Worth Airport, TX
At Dallas Fort Worth Airport, the median last spring frost (32°F) is Mar 8 and the median first fall frost is Nov 24, for a typical growing season of 262 days. For a 90% chance that the last frost has passed, wait until Mar 26. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 8Last spring frost (median)50% chance of 32°F after this date
- Mar 26Safer planting date10% chance of 32°F after this date
- Nov 24First fall frost (median)50% chance of 32°F by this date
- 262 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 2 | Mar 21 | Apr 9 |
| 32°F | Feb 17 | Mar 8 | Mar 26 |
| 28°F | Jan 30 | Feb 25 | Mar 14 |
| 24°F | Jan 7 | Feb 7 | Mar 7 |
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 13 | Nov 30 |
| 32°F | Nov 6 | Nov 24 | Dec 12 |
| 28°F | Nov 15 | Dec 7 | Dec 28 |
| 24°F | Nov 28 | Dec 24 | Jan 22 |
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 | 212 days | 237 days | 263 days |
| 32°F | 236 days | 262 days | 288 days |
| 28°F | 257 days | 288 days | 320 days |
| 24°F | 281 days | 319 days | 352 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 95% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 75063 | 8b | 15 to 20°F | 2 km |
| 75261 | 8b | 15 to 20°F | 3 km |
| 75038 | 8b | 15 to 20°F | 5 km |
| 76039 | 8b | 15 to 20°F | 8 km |
| 75039 | 8b | 15 to 20°F | 8 km |
| 75062 | 8b | 15 to 20°F | 8 km |
| 75061 | 8b | 15 to 20°F | 9 km |
| 76021 | 8b | 15 to 20°F | 12 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 USW00003927, at 32.8978, -97.0189, elevation 171 m (560 ft).
- Data quality: Standard (24+ years of data), 26 years of freeze data.
- Average days per year at or below 32°F: 29.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Grapevine Dam (7 km)
- Dallas Love Field (16 km)
- Arlington Six Flags (16 km)
- Arlington Muni Airport (27 km)
- Fort Worth Wsfo (27 km)
- Dallas Redbird Airport (28 km)
- Richardson (28 km)
- Joe Pool Lake (29 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.