| 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 |
| 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: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 70a - Permian Hills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 26415 - Pennsboro, WV | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 20 | 28 | 37 | 47 | 56 | 61 | 60 | 53 | 39 | 31 | 24 | 40 |
| Avg Max Temp (°F) | 39 | 44 | 54 | 65 | 74 | 81 | 84 | 83 | 77 | 66 | 55 | 44 | 64 |
| Avg Precip (In.) | 3.57 | 3.09 | 3.78 | 3.58 | 4.5 | 4.3 | 4.69 | 4.28 | 3.34 | 2.83 | 3.43 | 3.3 | 44.7 |