Frost dates for Georgetown Lake, TX
At Georgetown Lake, the median last spring frost (32°F) is Mar 6 and the median first fall frost is Nov 24, for a typical growing season of 259 days. For a 90% chance that the last frost has passed, wait until Mar 30. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Mar 6Last spring frost (median)50% chance of 32°F after this date
- Mar 30Safer planting date10% chance of 32°F after this date
- Nov 24First fall frost (median)50% chance of 32°F by this date
- 259 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 1 | Mar 22 | Apr 10 |
| 32°F | Feb 13 | Mar 6 | Mar 30 |
| 28°F | Jan 24 | Feb 23 | Mar 16 |
| 24°F | Dec 31 | Feb 3 | Mar 6 |
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 31 | Nov 13 | Dec 1 |
| 32°F | Nov 5 | Nov 24 | Dec 10 |
| 28°F | Nov 15 | Dec 5 | Jan 1 |
| 24°F | Nov 27 | Dec 22 | Jan 27 |
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 | 209 days | 232 days | 261 days |
| 32°F | 231 days | 259 days | 289 days |
| 28°F | 258 days | 288 days | 321 days |
| 24°F | 284 days | 323 days | 360 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 93% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 78628 | 9a | 20 to 25°F | 6 km |
| 78633 | 8b | 15 to 20°F | 7 km |
| 78626 | 9a | 20 to 25°F | 10 km |
| 78674 | 9a | 20 to 25°F | 12 km |
| 78665 | 9a | 20 to 25°F | 16 km |
| 76527 | 8b | 15 to 20°F | 19 km |
| 76537 | 8b | 15 to 20°F | 19 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 USC00413507, at 30.6764, -97.7208, elevation 266 m (874 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 28.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Austin Great Hills (29 km)
- Taylor 1nw (31 km)
- Austin 33 NW (35 km)
- Granger Dam (39 km)
- Austin-Camp Mabry (40 km)
- Killeen (43 km)
- Stillhouse Hollow Dam (44 km)
- Elgin 1 N (48 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.