| 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 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 70c - Pittsburgh Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 26035 - Colliers, WV | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 21 | 29 | 37 | 47 | 57 | 61 | 60 | 53 | 41 | 33 | 25 | 40 |
| Avg Max Temp (°F) | 37 | 41 | 51 | 62 | 72 | 80 | 83 | 82 | 76 | 65 | 52 | 41 | 62 |
| Avg Precip (In.) | 2.85 | 2.46 | 3.24 | 3.25 | 4.11 | 4.18 | 4.3 | 3.69 | 3.19 | 2.57 | 3.07 | 2.77 | 39.67 |