Frost dates for Liberty, TX
At Liberty, the median last spring frost (32°F) is Feb 21 and the median first fall frost is Dec 1, for a typical growing season of 286 days. For a 90% chance that the last frost has passed, wait until Mar 17. Nearby ZIP codes are in USDA hardiness zones 9a to 9b.
- Feb 21Last spring frost (median)50% chance of 32°F after this date
- Mar 17Safer planting date10% chance of 32°F after this date
- Dec 1First fall frost (median)50% chance of 32°F by this date
- 286 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 10 | Mar 8 | Mar 31 |
| 32°F | Jan 22 | Feb 21 | Mar 17 |
| 28°F | Dec 25 | Jan 30 | Mar 1 |
| 24°F | Dec 23 | Jan 17 | Feb 14 |
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 | Nov 1 | Nov 18 | Dec 9 |
| 32°F | Nov 9 | Dec 1 | Jan 2 |
| 28°F | Nov 24 | Dec 22 | Jan 23 |
| 24°F | Dec 7 | Jan 3 | Feb 2 |
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 | 227 days | 254 days | 286 days |
| 32°F | 254 days | 286 days | 324 days |
| 28°F | 288 days | 327 days | 365 days |
| 24°F | 327 days | 364 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 90% |
| 24°F | 50% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 77575 | 9b | 25 to 30°F | 5 km |
| 77561 | 9a | 20 to 25°F | 10 km |
| 77535 | 9b | 25 to 30°F | 12 km |
| 77582 | 9a | 20 to 25°F | 14 km |
| 77533 | 9a | 20 to 25°F | 19 km |
| 77564 | 9a | 20 to 25°F | 23 km |
| 77519 | 9a | 20 to 25°F | 28 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 USC00415196, at 30.0592, -94.7950, elevation 11 m (35 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 14.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Baytown (25 km)
- Anahuac (34 km)
- Cleveland (44 km)
- Beaumont Rsch Center (48 km)
- Houston Intercont Airport (55 km)
- Houston-Port (58 km)
- Wildwood (63 km)
- Lumberton (63 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.