| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 69a - Forested Hills and Mountains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 26291 - Slatyfork, WV | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 25 | 33 | 43 | 51 | 56 | 55 | 49 | 37 | 28 | 20 | 36 |
| Avg Max Temp (°F) | 36 | 39 | 47 | 58 | 66 | 73 | 77 | 75 | 70 | 60 | 49 | 40 | 57 |
| Avg Precip (In.) | 4.35 | 3.76 | 4.58 | 4.2 | 5.26 | 5.02 | 6.2 | 4.99 | 4.12 | 3.63 | 4.02 | 4.17 | 54.29 |