Lavelle, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.5 °F (low) to 58.6 °F (high). Annual precipitation averages 48.8 Inches. Lavelle 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 | 17.6 °F | 33.9 °F | 3.52 in. |
| February | 18.9 °F | 36.7 °F | 2.67 in. |
| March | 26.4 °F | 45.4 °F | 3.85 in. |
| April | 37.4 °F | 58.2 °F | 4.0 in. |
| May | 47.6 °F | 68.6 °F | 4.18 in. |
| June | 56.5 °F | 76.5 °F | 4.61 in. |
| July | 61.0 °F | 81.8 °F | 4.63 in. |
| August | 59.2 °F | 80.0 °F | 4.26 in. |
| September | 52.4 °F | 73.1 °F | 5.11 in. |
| October | 41.5 °F | 60.9 °F | 4.6 in. |
| November | 31.8 °F | 49.1 °F | 3.58 in. |
| December | 23.8 °F | 38.7 °F | 3.78 in. |
| Annual | 39.5 °F | 58.6 °F | 48.79 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |