| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°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. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 45e - Northern Inner Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 24557 - Gretna, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 25 | 32 | 40 | 50 | 59 | 64 | 62 | 55 | 42 | 34 | 27 | 43 |
| Avg Max Temp (°F) | 46 | 50 | 59 | 69 | 76 | 83 | 87 | 86 | 80 | 69 | 60 | 50 | 68 |
| Avg Precip (In.) | 3.84 | 3.27 | 4.21 | 3.68 | 4.27 | 3.64 | 4.19 | 3.61 | 4.12 | 3.62 | 3.31 | 3.25 | 45.02 |