| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°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: | 70a - Permian Hills |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 26041 - Moundsville, WV | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 29 | 39 | 49 | 58 | 62 | 61 | 54 | 41 | 33 | 25 | 41 |
| Avg Max Temp (°F) | 38 | 42 | 52 | 64 | 73 | 82 | 85 | 84 | 77 | 66 | 53 | 42 | 63 |
| Avg Precip (In.) | 2.87 | 2.39 | 3.34 | 3.51 | 4.13 | 4.33 | 4.26 | 3.93 | 3.31 | 2.57 | 3.41 | 2.97 | 41.02 |