Callery, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 61.4 °F (high). Annual precipitation averages 41.6 Inches. Callery is located in USDA Plant Hardiness Zone 6b. 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 | 20.8 °F | 36.6 °F | 3.35 in. |
| February | 21.9 °F | 39.5 °F | 2.53 in. |
| March | 28.8 °F | 48.7 °F | 3.13 in. |
| April | 39.0 °F | 62.1 °F | 3.61 in. |
| May | 49.5 °F | 71.9 °F | 3.77 in. |
| June | 58.4 °F | 79.8 °F | 4.29 in. |
| July | 62.3 °F | 83.4 °F | 4.19 in. |
| August | 60.9 °F | 82.2 °F | 3.61 in. |
| September | 54.0 °F | 75.9 °F | 3.72 in. |
| October | 43.0 °F | 63.6 °F | 3.09 in. |
| November | 33.6 °F | 51.5 °F | 3.16 in. |
| December | 26.3 °F | 41.0 °F | 3.15 in. |
| Annual | 41.5 °F | 61.4 °F | 41.6 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 |