| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 67b - Northern Shale Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 22603 - Winchester, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 30 | 39 | 49 | 57 | 62 | 60 | 53 | 41 | 32 | 25 | 41 |
| Avg Max Temp (°F) | 41 | 44 | 54 | 65 | 74 | 82 | 86 | 85 | 78 | 67 | 56 | 45 | 65 |
| Avg Precip (In.) | 2.79 | 2.46 | 3.4 | 3.13 | 3.96 | 3.9 | 3.84 | 3.53 | 3.56 | 3.22 | 3.1 | 2.67 | 39.56 |