| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | 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 27253 - Graham, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 30 | 37 | 45 | 54 | 63 | 68 | 66 | 59 | 46 | 38 | 30 | 47 |
| Avg Max Temp (°F) | 49 | 53 | 62 | 72 | 79 | 86 | 90 | 89 | 82 | 72 | 62 | 53 | 71 |
| Avg Precip (In.) | 4.06 | 3.43 | 4.27 | 3.27 | 4.16 | 4.03 | 4.48 | 3.9 | 4.18 | 3.4 | 3.05 | 3.21 | 45.44 |