| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | 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: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 64b - Trap Rock and Conglomerate Uplands |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 17365 - Wellsville, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 23 | 31 | 40 | 50 | 59 | 64 | 62 | 55 | 43 | 34 | 26 | 42 |
| Avg Max Temp (°F) | 38 | 42 | 52 | 63 | 73 | 81 | 86 | 84 | 77 | 65 | 53 | 42 | 63 |
| Avg Precip (In.) | 3.35 | 2.74 | 3.52 | 3.41 | 4.21 | 4.06 | 3.5 | 3.27 | 3.94 | 3.17 | 3.39 | 3.14 | 41.71 |