| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| 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: | 70b - Monongahela Transition Zone |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 15145 - Turtle Creek, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 21 | 29 | 38 | 48 | 58 | 62 | 60 | 54 | 42 | 34 | 25 | 41 |
| Avg Max Temp (°F) | 36 | 39 | 50 | 61 | 71 | 80 | 83 | 82 | 75 | 64 | 51 | 41 | 61 |
| Avg Precip (In.) | 2.66 | 2.34 | 3.32 | 3.16 | 3.91 | 3.89 | 4.04 | 3.82 | 3.42 | 2.46 | 3.2 | 2.8 | 39 |