| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65m - Rolling Coastal Plain |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 23086 - King William, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 28 | 35 | 44 | 53 | 62 | 67 | 65 | 58 | 46 | 37 | 30 | 46 |
| Avg Max Temp (°F) | 48 | 52 | 61 | 71 | 78 | 85 | 88 | 87 | 81 | 71 | 61 | 52 | 70 |
| Avg Precip (In.) | 3.77 | 3.13 | 4.21 | 3.08 | 4.1 | 3.59 | 4.54 | 3.72 | 4.06 | 3.43 | 3.23 | 3.24 | 44.1 |