Bally, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.4 °F (low) to 62.6 °F (high). Annual precipitation averages 49.5 Inches. Bally is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.4 °F | 38.0 °F | 3.46 in. |
| February | 22.7 °F | 40.8 °F | 2.75 in. |
| March | 30.0 °F | 49.4 °F | 4.02 in. |
| April | 40.3 °F | 62.2 °F | 3.9 in. |
| May | 50.1 °F | 72.2 °F | 4.19 in. |
| June | 59.3 °F | 81.0 °F | 4.72 in. |
| July | 64.0 °F | 85.8 °F | 5.08 in. |
| August | 62.4 °F | 83.9 °F | 4.58 in. |
| September | 55.0 °F | 77.2 °F | 5.0 in. |
| October | 43.4 °F | 64.9 °F | 4.35 in. |
| November | 33.8 °F | 53.2 °F | 3.33 in. |
| December | 26.9 °F | 43.0 °F | 4.08 in. |
| Annual | 42.4 °F | 62.6 °F | 49.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |