Frost dates for Fort Pierce St. Lucie Co Intl Airport, FL
At Fort Pierce St. Lucie Co Intl Airport, the median last spring frost (32°F) is Jan 24 and the median first fall frost is Jan 14, for a typical growing season of 365 days. For a 90% chance that the last frost has passed, wait until Feb 21. Nearby ZIP codes are in USDA hardiness zone 10a.
- Jan 24Last spring frost (median)50% chance of 32°F after this date
- Feb 21Safer planting date10% chance of 32°F after this date
- Jan 14First fall frost (median)50% chance of 32°F by this date
- 365 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 6 | Feb 3 | Mar 8 |
| 32°F | Jan 1 | Jan 24 | Feb 21 |
| 28°F | Jan 1 | Jan 18 | Jan 31 |
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 | Dec 6 | Jan 6 | Feb 5 |
| 32°F | Dec 23 | Jan 14 | Feb 13 |
| 28°F | Dec 29 | Jan 14 | Jan 31 |
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 | 293 days | 329 days | 365 days |
| 32°F | 325 days | 365 days | 365 days |
| 28°F | 352 days | 365 days | 365 days |
| 24°F | 365 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 87% |
| 32°F | 48% |
| 28°F | 17% |
| 24°F | 3% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 34946 | 10a | 30 to 35°F | 2 km |
| 34951 | 10a | 30 to 35°F | 6 km |
| 34945 | 10a | 30 to 35°F | 18 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 USW00012895, at 27.4981, -80.3767, elevation 7 m (24 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 2.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fort Pierce (7 km)
- Vero Beach 4se (17 km)
- Vero Beach Intl Airport (22 km)
- Nettles Island (28 km)
- Stuart (37 km)
- Port Salerno 5w (46 km)
- Palm Bay (53 km)
- Okeechobee (62 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.