| 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 11 - May 20 |
| 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 16201 - Kittanning, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 26 | 35 | 45 | 54 | 59 | 58 | 51 | 39 | 31 | 23 | 38 |
| Avg Max Temp (°F) | 36 | 39 | 50 | 62 | 72 | 80 | 84 | 82 | 76 | 65 | 51 | 40 | 62 |
| Avg Precip (In.) | 2.72 | 2.29 | 3.14 | 3.36 | 3.94 | 4.42 | 4.3 | 4.17 | 3.82 | 2.76 | 3.35 | 3.02 | 41.29 |