Towanda, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.6 °F (low) to 59.4 °F (high). Annual precipitation averages 37.7 Inches. Towanda 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 | 16.3 °F | 33.8 °F | 2.39 in. |
| February | 16.8 °F | 36.4 °F | 1.79 in. |
| March | 24.0 °F | 44.8 °F | 3.03 in. |
| April | 34.2 °F | 58.7 °F | 3.31 in. |
| May | 45.5 °F | 70.7 °F | 3.25 in. |
| June | 54.7 °F | 78.9 °F | 3.79 in. |
| July | 58.9 °F | 83.1 °F | 3.83 in. |
| August | 57.7 °F | 81.7 °F | 3.77 in. |
| September | 50.7 °F | 74.5 °F | 3.64 in. |
| October | 39.3 °F | 61.9 °F | 3.65 in. |
| November | 30.1 °F | 49.2 °F | 2.58 in. |
| December | 23.1 °F | 38.7 °F | 2.65 in. |
| Annual | 37.6 °F | 59.4 °F | 37.68 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 | Dfb - Humid Continental Mild Summer, Wet All Year |