| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F 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: | 45f - Northern Outer Piedmont |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 27603 - Raleigh, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 33 | 40 | 48 | 56 | 65 | 69 | 68 | 62 | 50 | 41 | 34 | 50 |
| Avg Max Temp (°F) | 51 | 55 | 63 | 72 | 79 | 86 | 89 | 87 | 82 | 72 | 63 | 54 | 71 |
| Avg Precip (In.) | 4.31 | 3.58 | 4.38 | 3.05 | 3.94 | 3.95 | 4.51 | 4.22 | 4.36 | 3.5 | 3.17 | 3.22 | 46.2 |