Ben Avon, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6 °C (low) to 16.6 °C (high). Annual precipitation averages 1014.2 Millimeters. Ben Avon is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.6 °C | 2.9 °C | 80.52 mm |
| February | -4.8 °C | 4.4 °C | 64.77 mm |
| March | -1 °C | 9.5 °C | 76.96 mm |
| April | 4.7 °C | 17.1 °C | 86.61 mm |
| May | 10.4 °C | 22.4 °C | 93.73 mm |
| June | 15.3 °C | 26.9 °C | 103.38 mm |
| July | 17.7 °C | 29.1 °C | 104.9 mm |
| August | 17 °C | 28.3 °C | 86.11 mm |
| September | 13.2 °C | 24.8 °C | 91.44 mm |
| October | 6.8 °C | 17.9 °C | 74.17 mm |
| November | 1.4 °C | 11.1 °C | 72.14 mm |
| December | -2.6 °C | 5.3 °C | 79.5 mm |
| Annual | 6 °C | 16.6 °C | 1014.23 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |