Avella, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.9 °F (low) to 62 °F (high). Annual precipitation averages 42.1 Inches. Avella is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.3 °F | 37.3 °F | 3.3 in. |
| February | 21.8 °F | 40.2 °F | 2.55 in. |
| March | 28.7 °F | 49.6 °F | 3.29 in. |
| April | 38.7 °F | 62.9 °F | 3.61 in. |
| May | 48.6 °F | 72.5 °F | 4.11 in. |
| June | 57.4 °F | 80.0 °F | 4.47 in. |
| July | 61.5 °F | 83.6 °F | 4.22 in. |
| August | 60.1 °F | 82.5 °F | 3.59 in. |
| September | 53.3 °F | 76.5 °F | 3.64 in. |
| October | 41.8 °F | 64.6 °F | 3.16 in. |
| November | 32.7 °F | 52.3 °F | 3.01 in. |
| December | 25.8 °F | 41.8 °F | 3.17 in. |
| Annual | 40.9 °F | 62 °F | 42.12 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |