| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| 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 22842 - Mount Jackson, VA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 23 | 30 | 39 | 49 | 57 | 62 | 60 | 53 | 41 | 33 | 25 | 41 |
| Avg Max Temp (°F) | 42 | 46 | 55 | 66 | 75 | 83 | 86 | 85 | 78 | 68 | 57 | 46 | 66 |
| Avg Precip (In.) | 2.65 | 2.34 | 2.89 | 2.61 | 3.62 | 3.4 | 3.44 | 3.44 | 3.65 | 3 | 2.81 | 2.45 | 36.3 |