| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | No Frost |
| Average Last Frost Date: | No Frost |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75d - Eastern Florida Flatwoods |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 34984 - Port Saint Lucie, FL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 54 | 54 | 59 | 63 | 68 | 72 | 73 | 74 | 73 | 69 | 63 | 57 | 65 |
| Avg Max Temp (°F) | 74 | 75 | 78 | 81 | 85 | 89 | 90 | 90 | 89 | 85 | 80 | 76 | 83 |
| Avg Precip (In.) | 2.9 | 3.03 | 3.85 | 2.8 | 4.99 | 6.71 | 6.35 | 6.44 | 7.93 | 5.88 | 3.97 | 2.64 | 57.5 |