| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 60a - Glaciated Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 16947 - Troy, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 14 | 23 | 33 | 43 | 52 | 56 | 55 | 48 | 37 | 29 | 20 | 35 |
| Avg Max Temp (°F) | 32 | 34 | 44 | 56 | 68 | 76 | 81 | 79 | 72 | 60 | 47 | 37 | 57 |
| Avg Precip (In.) | 2.29 | 2.09 | 2.71 | 3 | 3.35 | 4.11 | 3.01 | 2.88 | 3.39 | 2.77 | 3.04 | 2.44 | 35.07 |