| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F | |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 45b - Southern Outer Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 29730 - Rock Hill, SC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 32 | 34 | 41 | 49 | 58 | 65 | 70 | 69 | 62 | 50 | 41 | 34 | 50 |
| Avg Max Temp (°F) | 52 | 57 | 65 | 73 | 80 | 87 | 90 | 88 | 82 | 73 | 63 | 54 | 72 |
| Avg Precip (In.) | 4.58 | 3.91 | 4.96 | 3.22 | 3.42 | 4.16 | 4.27 | 4.06 | 4.43 | 3.67 | 3.52 | 3.52 | 47.73 |