Frost dates for Vernon, TX
At Vernon, the median last spring frost (32°F) is Mar 27 and the median first fall frost is Nov 9, for a typical growing season of 225 days. For a 90% chance that the last frost has passed, wait until Apr 15. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.
- Mar 27Last spring frost (median)50% chance of 32°F after this date
- Apr 15Safer planting date10% chance of 32°F after this date
- Nov 9First fall frost (median)50% chance of 32°F by this date
- 225 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 23 | Apr 9 | Apr 26 |
| 32°F | Mar 5 | Mar 27 | Apr 15 |
| 28°F | Feb 22 | Mar 9 | Mar 31 |
| 24°F | Feb 7 | Feb 28 | 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 16 | Nov 1 | Nov 14 |
| 32°F | Oct 24 | Nov 9 | Nov 24 |
| 28°F | Nov 1 | Nov 18 | Dec 5 |
| 24°F | Nov 12 | Nov 30 | Dec 19 |
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 | 182 days | 204 days | 226 days |
| 32°F | 200 days | 225 days | 253 days |
| 28°F | 224 days | 252 days | 277 days |
| 24°F | 248 days | 274 days | 301 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 |
|---|---|---|---|
| 76384 | 8a | 10 to 15°F | 1 km |
| 76373 | 8a | 10 to 15°F | 18 km |
| 79225 | 7b | 5 to 10°F | 20 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 USC00419346, at 34.1517, -99.3256, elevation 369 m (1,210 ft).
- Data quality: Representative (10+ years), 13 years of freeze data.
- Average days per year at or below 32°F: 71.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Copper Breaks State Park (39 km)
- Quanah 2 SW (42 km)
- Lake Kemp (47 km)
- Seymour 3nw (57 km)
- Truscott 3 W (66 km)
- Wichita Falls Muni Airport (79 km)
- Munday (82 km)
- Archer City 2w (87 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.