Terre Hill, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.7 °F (low) to 62.5 °F (high). Annual precipitation averages 47.2 Inches. Terre Hill is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.7 °F | 38.5 °F | 3.18 in. |
| February | 23.7 °F | 40.9 °F | 2.68 in. |
| March | 30.9 °F | 49.7 °F | 3.94 in. |
| April | 41.1 °F | 62.3 °F | 3.71 in. |
| May | 51.1 °F | 71.8 °F | 3.86 in. |
| June | 60.4 °F | 80.5 °F | 4.47 in. |
| July | 65.4 °F | 84.7 °F | 4.63 in. |
| August | 63.7 °F | 83.1 °F | 4.27 in. |
| September | 56.7 °F | 76.7 °F | 4.84 in. |
| October | 45.2 °F | 64.8 °F | 4.61 in. |
| November | 35.6 °F | 53.5 °F | 3.28 in. |
| December | 27.8 °F | 43.2 °F | 3.72 in. |
| Annual | 43.7 °F | 62.5 °F | 47.19 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |