Worthville, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.6 °F (low) to 59.5 °F (high). Annual precipitation averages 46.4 Inches. Worthville is located in USDA Plant Hardiness Zone 6a. 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 | 17.3 °F | 34.4 °F | 3.65 in. |
| February | 17.9 °F | 37.3 °F | 2.69 in. |
| March | 24.8 °F | 46.4 °F | 3.62 in. |
| April | 34.6 °F | 60.3 °F | 4.03 in. |
| May | 45.2 °F | 71.0 °F | 4.0 in. |
| June | 54.2 °F | 78.0 °F | 4.78 in. |
| July | 58.2 °F | 81.7 °F | 4.73 in. |
| August | 56.9 °F | 81.0 °F | 4.13 in. |
| September | 50.0 °F | 74.2 °F | 4.12 in. |
| October | 39.1 °F | 62.2 °F | 3.4 in. |
| November | 30.1 °F | 49.4 °F | 3.57 in. |
| December | 23.3 °F | 38.6 °F | 3.67 in. |
| Annual | 37.6 °F | 59.5 °F | 46.39 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |