Frost dates for Denton Muni Airport, TX
At Denton Muni Airport, the median last spring frost (32°F) is Mar 24 and the median first fall frost is Nov 7, for a typical growing season of 227 days. For a 90% chance that the last frost has passed, wait until Apr 17. Nearby ZIP codes are in USDA hardiness zones 8a to 8b.
- Mar 24Last spring frost (median)50% chance of 32°F after this date
- Apr 17Safer planting date10% chance of 32°F after this date
- Nov 7First fall frost (median)50% chance of 32°F by this date
- 227 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 19 | Apr 8 | Apr 27 |
| 32°F | Mar 3 | Mar 24 | Apr 17 |
| 28°F | Feb 18 | Mar 9 | Apr 3 |
| 24°F | Jan 29 | Feb 25 | Mar 16 |
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 15 | Oct 30 | Nov 13 |
| 32°F | Oct 22 | Nov 7 | Nov 26 |
| 28°F | Nov 1 | Nov 20 | Dec 7 |
| 24°F | Nov 12 | Dec 3 | Dec 26 |
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 | 181 days | 202 days | 228 days |
| 32°F | 199 days | 227 days | 255 days |
| 28°F | 225 days | 256 days | 283 days |
| 24°F | 255 days | 283 days | 312 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 |
|---|---|---|---|
| 76207 | 8a | 10 to 15°F | 3 km |
| 76203 | 8a | 10 to 15°F | 4 km |
| 76259 | 8a | 10 to 15°F | 11 km |
| 76226 | 8b | 15 to 20°F | 11 km |
| 76249 | 8a | 10 to 15°F | 13 km |
| 76266 | 8a | 10 to 15°F | 19 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 USW00003991, at 33.2061, -97.1989, elevation 196 m (642 ft).
- Data quality: Representative (10+ years), 24 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
- Denton 2 SE (9 km)
- Pilot Point Isl Du Boi (25 km)
- Fort Worth Alliance Airport (28 km)
- Grapevine Dam (31 km)
- Dallas Fort Worth Airport (38 km)
- Decatur (40 km)
- Fort Worth Wsfo (42 km)
- Fort Worth Meacham Field Naaf (46 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.