| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 66c - New River Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 28631 - Grassy Creek, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 22 | 29 | 37 | 46 | 54 | 58 | 56 | 50 | 38 | 30 | 23 | 39 |
| Avg Max Temp (°F) | 42 | 46 | 54 | 63 | 70 | 77 | 81 | 80 | 74 | 64 | 55 | 46 | 63 |
| Avg Precip (In.) | 3.9 | 3.68 | 4.7 | 4.09 | 4.94 | 4.43 | 4.21 | 3.91 | 3.97 | 3.76 | 3.95 | 3.2 | 48.73 |