| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 65m - Rolling Coastal Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 27577 - Smithfield, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 30 | 31 | 39 | 46 | 55 | 63 | 68 | 66 | 60 | 47 | 38 | 32 | 48 |
| Avg Max Temp (°F) | 52 | 55 | 64 | 72 | 80 | 86 | 90 | 88 | 83 | 73 | 64 | 55 | 72 |
| Avg Precip (In.) | 4.25 | 3.65 | 4.53 | 3.21 | 4.08 | 4.05 | 5.13 | 4.56 | 4.63 | 3.22 | 2.99 | 3.11 | 47.4 |