| 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 |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 21 - May 31 |
| 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 16262 - Worthington, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 19 | 26 | 35 | 45 | 55 | 59 | 58 | 51 | 40 | 31 | 23 | 38 |
| Avg Max Temp (°F) | 36 | 39 | 50 | 62 | 73 | 80 | 84 | 82 | 76 | 65 | 51 | 40 | 61 |
| Avg Precip (In.) | 2.77 | 2.33 | 3.2 | 3.39 | 3.97 | 4.46 | 4.28 | 4.13 | 3.85 | 2.77 | 3.38 | 3.04 | 41.58 |