| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 45f - Northern Outer Piedmont |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 23970 - South Hill, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 28 | 35 | 43 | 53 | 61 | 66 | 65 | 58 | 45 | 36 | 29 | 45 |
| Avg Max Temp (°F) | 48 | 52 | 60 | 70 | 77 | 85 | 89 | 87 | 81 | 71 | 61 | 52 | 69 |
| Avg Precip (In.) | 3.98 | 3.24 | 4.24 | 3.27 | 3.97 | 3.64 | 4.35 | 4.07 | 4.22 | 3.63 | 3.27 | 3.11 | 45 |