Frost dates for Houston Hooks Mem Airport, TX
At Houston Hooks Mem Airport, the median last spring frost (32°F) is Feb 19 and the median first fall frost is Dec 3, for a typical growing season of 290 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 19Last spring frost (median)50% chance of 32°F after this date
- Mar 15Safer planting date10% chance of 32°F after this date
- Dec 3First fall frost (median)50% chance of 32°F by this date
- 290 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 11 | Mar 7 | Mar 29 |
| 32°F | Jan 21 | Feb 19 | Mar 15 |
| 28°F | Dec 28 | Jan 31 | Mar 5 |
| 24°F | Dec 24 | Jan 17 | Feb 23 |
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 2 | Nov 19 | Dec 8 |
| 32°F | Nov 13 | Dec 3 | Jan 5 |
| 28°F | Dec 2 | Dec 29 | Feb 1 |
| 24°F | Dec 11 | Jan 6 | Feb 6 |
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 | 228 days | 258 days | 289 days |
| 32°F | 256 days | 290 days | 332 days |
| 28°F | 289 days | 333 days | 365 days |
| 24°F | 331 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 99% |
| 28°F | 85% |
| 24°F | 43% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 77379 | 9b | 25 to 30°F | 4 km |
| 77375 | 9b | 25 to 30°F | 4 km |
| 77389 | 9b | 25 to 30°F | 7 km |
| 77388 | 9b | 25 to 30°F | 9 km |
| 77068 | 9b | 25 to 30°F | 9 km |
| 77069 | 9b | 25 to 30°F | 9 km |
| 77070 | 9b | 25 to 30°F | 10 km |
| 77377 | 9a | 20 to 25°F | 11 km |
| 77380 | 9b | 25 to 30°F | 11 km |
| 77429 | 9b | 25 to 30°F | 13 km |
| 77381 | 9a | 20 to 25°F | 13 km |
| 77066 | 9b | 25 to 30°F | 13 km |
| 77382 | 9a | 20 to 25°F | 14 km |
| 77362 | 9a | 20 to 25°F | 15 km |
| 77064 | 9b | 25 to 30°F | 16 km |
| 77065 | 9b | 25 to 30°F | 16 km |
| 77354 | 9a | 20 to 25°F | 18 km |
| 77095 | 9b | 25 to 30°F | 20 km |
| 77355 | 9a | 20 to 25°F | 21 km |
| 77433 | 9a | 20 to 25°F | 22 km |
| 77041 | 9b | 25 to 30°F | 23 km |
| 77447 | 9a | 20 to 25°F | 26 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 USW00053910, at 30.0675, -95.5561, elevation 46 m (152 ft).
- Data quality: Representative (10+ years), 17 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
- Houston Intercont Airport (21 km)
- Conroe (30 km)
- Conroe Montgomery Co Airport (35 km)
- Houston-Port (45 km)
- Houston Sugarland Mem (50 km)
- Sugar Land (50 km)
- Houston Hobby Airport (55 km)
- Cleveland (56 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.