Lisbon Falls, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36 °F (low) to 55.5 °F (high). Annual precipitation averages 50 Inches. Lisbon Falls is located in USDA Plant Hardiness Zone 5b. 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 | 11.0 °F | 30.1 °F | 3.62 in. |
| February | 12.8 °F | 33.1 °F | 3.47 in. |
| March | 22.4 °F | 41.1 °F | 3.98 in. |
| April | 33.0 °F | 53.4 °F | 4.49 in. |
| May | 43.6 °F | 64.8 °F | 3.65 in. |
| June | 53.3 °F | 73.5 °F | 4.78 in. |
| July | 59.2 °F | 79.3 °F | 3.79 in. |
| August | 57.8 °F | 78.4 °F | 3.51 in. |
| September | 50.3 °F | 71.0 °F | 4.04 in. |
| October | 39.4 °F | 58.5 °F | 5.54 in. |
| November | 29.6 °F | 46.6 °F | 4.46 in. |
| December | 19.2 °F | 36.1 °F | 4.7 in. |
| Annual | 36 °F | 55.5 °F | 50.03 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |