Frost dates for Toledo Bend Dam, TX
At Toledo Bend Dam, the median last spring frost (32°F) is Mar 9 and the median first fall frost is Nov 18, for a typical growing season of 253 days. For a 90% chance that the last frost has passed, wait until Apr 4. Nearby ZIP codes are in USDA hardiness zone 9a.
- Mar 9Last spring frost (median)50% chance of 32°F after this date
- Apr 4Safer planting date10% chance of 32°F after this date
- Nov 18First fall frost (median)50% chance of 32°F by this date
- 253 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 1 | Mar 27 | Apr 17 |
| 32°F | Feb 16 | Mar 9 | Apr 4 |
| 28°F | Jan 26 | Feb 25 | Mar 17 |
| 24°F | Dec 31 | Feb 3 | Mar 6 |
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 24 | Nov 6 | Nov 24 |
| 32°F | Nov 2 | Nov 18 | Dec 6 |
| 28°F | Nov 9 | Nov 30 | Jan 1 |
| 24°F | Nov 20 | 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 | 198 days | 225 days | 254 days |
| 32°F | 222 days | 253 days | 281 days |
| 28°F | 250 days | 281 days | 315 days |
| 24°F | 281 days | 318 days | 360 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 93% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 71403 | 9a | 20 to 25°F | 12 km |
| 75932 | 9a | 20 to 25°F | 14 km |
| 75977 | 9a | 20 to 25°F | 24 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 USC00419068, at 31.1750, -93.5653, elevation 58 m (190 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 39.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sam Rayburn Dam (53 km)
- San Augustine (65 km)
- Town Bluff Dam (73 km)
- Center (90 km)
- Orange 9 N (107 km)
- Wildwood (110 km)
- Lufkin Angelina Co Airport (113 km)
- Nacogdoches (113 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.