| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F | |
| Average First Frost Date: | Dec. 11 - Dec. 20 | |
| Average Last Frost Date: | Feb. 21 - Feb. 29 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 63h - Carolina Flatwoods | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 29485 - Summerville, SC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 37 | 44 | 50 | 59 | 67 | 71 | 70 | 65 | 53 | 44 | 37 | 53 |
| Avg Max Temp (°F) | 58 | 62 | 69 | 77 | 83 | 88 | 91 | 90 | 85 | 77 | 69 | 61 | 76 |
| Avg Precip (In.) | 4.64 | 3.39 | 4.39 | 3.07 | 3.67 | 5.94 | 5.99 | 6.59 | 5.72 | 3.23 | 2.76 | 3.43 | 52.82 |