| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 64c - Piedmont Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 22713 - Boston, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 33 | 41 | 50 | 59 | 64 | 62 | 56 | 43 | 35 | 27 | 43 |
| Avg Max Temp (°F) | 44 | 48 | 57 | 68 | 76 | 84 | 88 | 86 | 80 | 69 | 58 | 48 | 67 |
| Avg Precip (In.) | 3.17 | 2.81 | 3.56 | 3.32 | 4.35 | 4.11 | 4.26 | 3.99 | 4.26 | 3.76 | 3.65 | 3.01 | 44.26 |