| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | 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 24531 - Chatham, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 32 | 40 | 49 | 59 | 64 | 62 | 55 | 41 | 33 | 26 | 42 |
| Avg Max Temp (°F) | 46 | 50 | 59 | 69 | 76 | 84 | 87 | 86 | 80 | 70 | 60 | 50 | 68 |
| Avg Precip (In.) | 3.92 | 3.29 | 4.38 | 3.73 | 4.15 | 3.75 | 4.17 | 3.43 | 4.45 | 3.67 | 3.3 | 3.29 | 45.54 |