Turner, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.5 °F (low) to 55 °F (high). Annual precipitation averages 49.4 Inches. 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 | 10.1 °F | 28.5 °F | 3.53 in. |
| February | 11.7 °F | 31.5 °F | 3.24 in. |
| March | 21.4 °F | 40.2 °F | 3.65 in. |
| April | 32.9 °F | 52.9 °F | 4.37 in. |
| May | 43.8 °F | 65.3 °F | 3.92 in. |
| June | 53.6 °F | 73.9 °F | 5.08 in. |
| July | 59.3 °F | 79.6 °F | 4.06 in. |
| August | 57.7 °F | 78.6 °F | 3.65 in. |
| September | 49.9 °F | 71.1 °F | 3.83 in. |
| October | 38.7 °F | 58.0 °F | 5.41 in. |
| November | 28.9 °F | 45.6 °F | 4.35 in. |
| December | 18.4 °F | 34.6 °F | 4.34 in. |
| Annual | 35.5 °F | 55 °F | 49.43 in. |
| 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 : -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 |