Frost dates for Hico, TX
At Hico, the median last spring frost (32°F) is Mar 24 and the median first fall frost is Nov 7, for a typical growing season of 229 days. For a 90% chance that the last frost has passed, wait until Apr 11. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 24Last spring frost (median)50% chance of 32°F after this date
- Apr 11Safer planting date10% chance of 32°F after this date
- Nov 7First fall frost (median)50% chance of 32°F by this date
- 229 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 17 | Apr 5 | Apr 22 |
| 32°F | Mar 4 | Mar 24 | Apr 11 |
| 28°F | Feb 21 | Mar 11 | Mar 29 |
| 24°F | Feb 2 | Feb 28 | Mar 18 |
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 16 | Oct 30 | Nov 14 |
| 32°F | Oct 25 | Nov 7 | Nov 25 |
| 28°F | Nov 1 | Nov 18 | Dec 7 |
| 24°F | Nov 9 | Nov 29 | Dec 20 |
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 | 183 days | 208 days | 231 days |
| 32°F | 207 days | 229 days | 254 days |
| 28°F | 227 days | 253 days | 279 days |
| 24°F | 248 days | 277 days | 306 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 76457 | 8b | 15 to 20°F | 4 km |
| 76649 | 8b | 15 to 20°F | 14 km |
| 76436 | 8b | 15 to 20°F | 22 km |
| 76665 | 8b | 15 to 20°F | 31 km |
| 76637 | 8b | 15 to 20°F | 35 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 USC00414137, at 31.9844, -98.0311, elevation 318 m (1,043 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 54.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Dublin 2se (27 km)
- Stephenville (33 km)
- Rainbow (43 km)
- Proctor Rsvr (44 km)
- Evant 1ssw (59 km)
- Granbury 5n (63 km)
- Whitney Dam (63 km)
- Cleburne (69 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.