Frost dates for Waco Regional Airport, TX
At Waco Regional Airport, the median last spring frost (32°F) is Mar 15 and the median first fall frost is Nov 15, for a typical growing season of 245 days. For a 90% chance that the last frost has passed, wait until Apr 6. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 15Last spring frost (median)50% chance of 32°F after this date
- Apr 6Safer planting date10% chance of 32°F after this date
- Nov 15First fall frost (median)50% chance of 32°F by this date
- 245 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 9 | Mar 31 | Apr 18 |
| 32°F | Feb 24 | Mar 15 | Apr 6 |
| 28°F | Feb 4 | Mar 2 | Mar 24 |
| 24°F | Jan 11 | Feb 13 | Mar 10 |
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 22 | Nov 4 | Nov 22 |
| 32°F | Nov 1 | Nov 15 | Dec 4 |
| 28°F | Nov 7 | Nov 28 | Dec 21 |
| 24°F | Nov 21 | Dec 14 | Jan 14 |
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 | 197 days | 220 days | 247 days |
| 32°F | 219 days | 245 days | 273 days |
| 28°F | 244 days | 272 days | 307 days |
| 24°F | 270 days | 306 days | 342 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 98% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 76708 | 8b | 15 to 20°F | 1 km |
| 76633 | 8b | 15 to 20°F | 13 km |
| 76640 | 8b | 15 to 20°F | 17 km |
| 76691 | 8b | 15 to 20°F | 21 km |
| 76654 | 8b | 15 to 20°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 USW00013959, at 31.6189, -97.2283, elevation 152 m (500 ft).
- Data quality: Representative (10+ years), 21 years of freeze data.
- Average days per year at or below 32°F: 34.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Waco Dam (2 km)
- McGregor (26 km)
- Whitney Dam (30 km)
- Hillsboro (46 km)
- Marlin (48 km)
- Gatesville (50 km)
- Navarro Mills Dam (64 km)
- Stillhouse Hollow Dam (71 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.