Frost dates for Houston Clover Field, TX
At Houston Clover Field, the median last spring frost (32°F) is Jan 31 and the median first fall frost is Dec 27, for a typical growing season of 328 days. For a 90% chance that the last frost has passed, wait until Mar 5. Nearby ZIP codes are in USDA hardiness zone 9b.
- Jan 31Last spring frost (median)50% chance of 32°F after this date
- Mar 5Safer planting date10% chance of 32°F after this date
- Dec 27First fall frost (median)50% chance of 32°F by this date
- 328 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 | Jan 23 | Feb 21 | Mar 18 |
| 32°F | Jan 1 | Jan 31 | Mar 5 |
| 28°F | Dec 22 | Jan 18 | Feb 20 |
| 24°F | Dec 29 | Jan 9 | Feb 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 13 | Dec 3 | Jan 2 |
| 32°F | Nov 28 | Dec 27 | Jan 28 |
| 28°F | Dec 14 | Jan 8 | Feb 4 |
| 24°F | Dec 26 | Jan 9 | Feb 1 |
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 | 252 days | 287 days | 324 days |
| 32°F | 286 days | 328 days | 365 days |
| 28°F | 325 days | 365 days | 365 days |
| 24°F | 358 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 89% |
| 28°F | 51% |
| 24°F | 13% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 77546 | 9b | 25 to 30°F | 5 km |
| 77581 | 9b | 25 to 30°F | 6 km |
| 77089 | 9b | 25 to 30°F | 8 km |
| 77584 | 9b | 25 to 30°F | 11 km |
| 77062 | 9b | 25 to 30°F | 12 km |
| 77578 | 9b | 25 to 30°F | 12 km |
| 77059 | 9b | 25 to 30°F | 16 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 USW00012975, at 29.5189, -95.2417, elevation 13 m (44 ft).
- Data quality: Representative (10+ years), 17 years of freeze data.
- Average days per year at or below 32°F: 6.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Houston Hobby Airport (14 km)
- Houston NWSO (16 km)
- Alvin (17 km)
- Houston-Port (25 km)
- Thompsons 3 WSW (38 km)
- Houston Sugarland Mem (42 km)
- Sugar Land (42 km)
- Angleton 2 W (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.