Conestoga, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.8 °F (low) to 63.1 °F (high). Annual precipitation averages 45.8 Inches. Conestoga is located in USDA Plant Hardiness Zone 7a. 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 | 23.0 °F | 39.0 °F | 3.24 in. |
| February | 23.8 °F | 41.7 °F | 2.65 in. |
| March | 31.2 °F | 50.4 °F | 3.81 in. |
| April | 41.4 °F | 63.3 °F | 3.6 in. |
| May | 51.2 °F | 72.7 °F | 3.82 in. |
| June | 60.8 °F | 81.2 °F | 4.42 in. |
| July | 65.2 °F | 85.4 °F | 4.34 in. |
| August | 63.6 °F | 83.8 °F | 3.83 in. |
| September | 56.7 °F | 77.1 °F | 4.74 in. |
| October | 45.1 °F | 65.5 °F | 4.47 in. |
| November | 35.3 °F | 53.9 °F | 3.15 in. |
| December | 27.9 °F | 43.5 °F | 3.73 in. |
| Annual | 43.8 °F | 63.1 °F | 45.8 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |