Dover-Foxcroft, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.3 °C (low) to 12 °C (high). Annual precipitation averages 1140.5 Millimeters. Dover-Foxcroft is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.2 °C | -3.5 °C | 85.85 mm |
| February | -14.7 °C | -1.5 °C | 69.85 mm |
| March | -8.5 °C | 3.7 °C | 85.09 mm |
| April | -1.6 °C | 10.8 °C | 94.23 mm |
| May | 4.7 °C | 18.2 °C | 94.74 mm |
| June | 10.1 °C | 22.9 °C | 116.59 mm |
| July | 13.3 °C | 26.1 °C | 93.98 mm |
| August | 12.2 °C | 25.4 °C | 90.68 mm |
| September | 7.8 °C | 21.1 °C | 93.47 mm |
| October | 1.8 °C | 13.7 °C | 122.43 mm |
| November | -3.4 °C | 6.6 °C | 97.79 mm |
| December | -9.9 °C | 0.1 °C | 95.76 mm |
| Annual | -0.3 °C | 12 °C | 1140.46 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |