Kenduskeag, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.6 °C (low) to 12.4 °C (high). Annual precipitation averages 1136.2 Millimeters. Kenduskeag is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.2 °C | -2.6 °C | 85.85 mm |
| February | -13.3 °C | -0.8 °C | 72.14 mm |
| March | -7 °C | 4 °C | 90.17 mm |
| April | -0.4 °C | 11.2 °C | 96.01 mm |
| May | 5.4 °C | 18.2 °C | 88.65 mm |
| June | 10.6 °C | 23.3 °C | 103.89 mm |
| July | 14 °C | 26.4 °C | 84.84 mm |
| August | 12.8 °C | 25.8 °C | 86.36 mm |
| September | 8.4 °C | 21.3 °C | 94.74 mm |
| October | 2.4 °C | 14 °C | 120.9 mm |
| November | -2.5 °C | 7.2 °C | 102.62 mm |
| December | -9 °C | 0.9 °C | 109.98 mm |
| Annual | 0.6 °C | 12.4 °C | 1136.15 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |