| 2023 Hardiness Zone: | 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: | January 11 - 20 | |
| Average Last Frost Date: | January 21 - 31 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 75d - Eastern Florida Flatwoods | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 34953 - Port Saint Lucie, FL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 53 | 54 | 58 | 62 | 67 | 72 | 73 | 73 | 73 | 68 | 62 | 56 | 64 |
| Avg Max Temp (°F) | 74 | 75 | 79 | 82 | 86 | 89 | 90 | 90 | 89 | 85 | 80 | 76 | 83 |
| Avg Precip (In.) | 2.85 | 2.93 | 3.73 | 2.77 | 4.88 | 6.75 | 6.36 | 6.48 | 7.87 | 5.75 | 3.85 | 2.54 | 56.75 |