| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| 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 15312 - Avella, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 20 | 28 | 37 | 46 | 56 | 60 | 59 | 52 | 41 | 32 | 24 | 39 |
| Avg Max Temp (°F) | 36 | 40 | 50 | 61 | 71 | 79 | 83 | 81 | 75 | 64 | 52 | 41 | 61 |
| Avg Precip (In.) | 2.78 | 2.45 | 3.24 | 3.23 | 4.19 | 4.14 | 4.3 | 3.72 | 3.28 | 2.6 | 3.14 | 2.85 | 39.91 |