Frost dates for Refugio 3 SW, TX
At Refugio 3 SW, the median last spring frost (32°F) is Feb 15 and the median first fall frost is Dec 5, for a typical growing season of 295 days. For a 90% chance that the last frost has passed, wait until Mar 12. Nearby ZIP codes are in USDA hardiness zones 9b to 10a.
- Feb 15Last spring frost (median)50% chance of 32°F after this date
- Mar 12Safer planting date10% chance of 32°F after this date
- Dec 5First fall frost (median)50% chance of 32°F by this date
- 295 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 6 | Mar 3 | Mar 23 |
| 32°F | Jan 12 | Feb 15 | Mar 12 |
| 28°F | Dec 19 | Jan 26 | Mar 3 |
| 24°F | Dec 12 | Jan 9 | Feb 21 |
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 4 | Nov 22 | Dec 12 |
| 32°F | Nov 13 | Dec 5 | Jan 3 |
| 28°F | Nov 25 | Dec 21 | Feb 1 |
| 24°F | Dec 5 | Jan 2 | Feb 8 |
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 | 238 days | 265 days | 299 days |
| 32°F | 260 days | 295 days | 337 days |
| 28°F | 291 days | 335 days | 365 days |
| 24°F | 327 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 84% |
| 24°F | 44% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 78393 | 9b | 25 to 30°F | 12 km |
| 78377 | 9b | 25 to 30°F | 17 km |
| 78340 | 9b | 25 to 30°F | 23 km |
| 78390 | 9b | 25 to 30°F | 32 km |
| 78389 | 9b | 25 to 30°F | 32 km |
| 78387 | 9b | 25 to 30°F | 32 km |
| 78382 | 9b | 25 to 30°F | 34 km |
| 78358 | 10a | 30 to 35°F | 38 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 USC00417530, at 28.2939, -97.3297, elevation 16 m (54 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 12.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Refugio 2 NW (5 km)
- Welder Wildlife Foundation (22 km)
- Sinton (35 km)
- Rockport Aransas Co Airport (36 km)
- Rockport (41 km)
- Beeville 5 NE (41 km)
- Goliad (41 km)
- Austwell (49 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.