Frost dates for Thompsons 3 WSW, TX
At Thompsons 3 WSW, the median last spring frost (32°F) is Feb 15 and the median first fall frost is Dec 6, for a typical growing season of 297 days. For a 90% chance that the last frost has passed, wait until Mar 15. Nearby ZIP codes are in USDA hardiness zones 9a to 9b.
- Feb 15Last spring frost (median)50% chance of 32°F after this date
- Mar 15Safer planting date10% chance of 32°F after this date
- Dec 6First fall frost (median)50% chance of 32°F by this date
- 297 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 4 | Mar 6 | Apr 1 |
| 32°F | Jan 13 | Feb 15 | Mar 15 |
| 28°F | Dec 21 | Jan 26 | Mar 5 |
| 24°F | Dec 16 | Jan 13 | Mar 1 |
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 4 | Nov 22 | Dec 12 |
| 32°F | Nov 13 | Dec 6 | Jan 5 |
| 28°F | Nov 29 | Dec 29 | Jan 29 |
| 24°F | Dec 10 | Jan 4 | Feb 9 |
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 | 233 days | 263 days | 298 days |
| 32°F | 261 days | 297 days | 335 days |
| 28°F | 292 days | 334 days | 365 days |
| 24°F | 333 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 99% |
| 28°F | 83% |
| 24°F | 44% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 77481 | 9b | 25 to 30°F | 6 km |
| 77469 | 9b | 25 to 30°F | 7 km |
| 77459 | 9b | 25 to 30°F | 11 km |
| 77545 | 9b | 25 to 30°F | 17 km |
| 77461 | 9b | 25 to 30°F | 17 km |
| 77583 | 9b | 25 to 30°F | 21 km |
| 77444 | 9b | 25 to 30°F | 26 km |
| 77417 | 9a | 20 to 25°F | 32 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 USC00418996, at 29.4822, -95.6314, elevation 21 m (70 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 8.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sugar Land (16 km)
- Houston Sugarland Mem (16 km)
- Houston Clover Field (38 km)
- Houston Hobby Airport (38 km)
- Angleton 2 W (40 km)
- Alvin (41 km)
- Angleton Brazoria Airport (45 km)
- Houston-Port (45 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.