Turner, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2 °C (low) to 12.8 °C (high). Annual precipitation averages 1255.5 Millimeters. Turner 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.2 °C | -1.9 °C | 89.66 mm |
| February | -11.3 °C | -0.3 °C | 82.3 mm |
| March | -5.9 °C | 4.6 °C | 92.71 mm |
| April | 0.5 °C | 11.6 °C | 111 mm |
| May | 6.6 °C | 18.5 °C | 99.57 mm |
| June | 12 °C | 23.3 °C | 129.03 mm |
| July | 15.2 °C | 26.4 °C | 103.12 mm |
| August | 14.3 °C | 25.9 °C | 92.71 mm |
| September | 9.9 °C | 21.7 °C | 97.28 mm |
| October | 3.7 °C | 14.4 °C | 137.41 mm |
| November | -1.7 °C | 7.6 °C | 110.49 mm |
| December | -7.6 °C | 1.4 °C | 110.24 mm |
| Annual | 2 °C | 12.8 °C | 1255.52 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |