Edgecomb, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.1 °F (low) to 54.8 °F (high). Annual precipitation averages 50.2 Inches. Edgecomb 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 | 12.5 °F | 29.8 °F | 3.9 in. |
| February | 14.5 °F | 32.7 °F | 3.58 in. |
| March | 23.5 °F | 40.5 °F | 4.38 in. |
| April | 34.2 °F | 52.7 °F | 4.48 in. |
| May | 44.5 °F | 63.8 °F | 3.73 in. |
| June | 53.8 °F | 72.3 °F | 4.49 in. |
| July | 59.8 °F | 78.3 °F | 3.52 in. |
| August | 58.9 °F | 77.5 °F | 3.18 in. |
| September | 51.7 °F | 70.1 °F | 3.98 in. |
| October | 40.8 °F | 57.7 °F | 5.46 in. |
| November | 30.9 °F | 46.2 °F | 4.6 in. |
| December | 20.5 °F | 35.8 °F | 4.85 in. |
| Annual | 37.1 °F | 54.8 °F | 50.15 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |