Wayne, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.6 °C (low) to 12.8 °C (high). Annual precipitation averages 1229.1 Millimeters. Wayne 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 | -12.7 °C | -1.9 °C | 92.46 mm |
| February | -11.9 °C | -0.3 °C | 79.5 mm |
| March | -6.2 °C | 4.4 °C | 92.46 mm |
| April | 0.2 °C | 11.7 °C | 106.93 mm |
| May | 6.3 °C | 18.6 °C | 93.98 mm |
| June | 11.7 °C | 23.3 °C | 123.44 mm |
| July | 14.8 °C | 26.4 °C | 98.04 mm |
| August | 13.9 °C | 25.9 °C | 93.22 mm |
| September | 9.4 °C | 21.8 °C | 94.23 mm |
| October | 3.4 °C | 14.4 °C | 135.89 mm |
| November | -2.1 °C | 7.5 °C | 108.97 mm |
| December | -8.1 °C | 1.4 °C | 109.98 mm |
| Annual | 1.6 °C | 12.8 °C | 1229.1 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 |