| 2023 Hardiness Zone: | 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. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 67a - Northern Limestone/Dolomite Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 24435 - Fairfield, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 30 | 38 | 48 | 56 | 61 | 59 | 52 | 40 | 31 | 24 | 40 |
| Avg Max Temp (°F) | 42 | 47 | 56 | 66 | 75 | 81 | 85 | 84 | 77 | 67 | 56 | 46 | 65 |
| Avg Precip (In.) | 3.27 | 2.83 | 3.71 | 3.37 | 4.24 | 3.75 | 4.17 | 3.35 | 3.69 | 3.48 | 3.46 | 3.02 | 42.34 |