Greene, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36 °F (low) to 55 °F (high). Annual precipitation averages 48 Inches. Greene 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 | 10.8 °F | 28.9 °F | 3.42 in. |
| February | 12.4 °F | 31.8 °F | 3.22 in. |
| March | 21.9 °F | 40.3 °F | 3.74 in. |
| April | 33.2 °F | 52.8 °F | 4.33 in. |
| May | 44.1 °F | 65.0 °F | 3.63 in. |
| June | 53.8 °F | 73.7 °F | 4.7 in. |
| July | 59.6 °F | 79.6 °F | 3.75 in. |
| August | 58.1 °F | 78.6 °F | 3.52 in. |
| September | 50.4 °F | 71.0 °F | 3.83 in. |
| October | 39.2 °F | 57.9 °F | 5.27 in. |
| November | 29.3 °F | 45.8 °F | 4.25 in. |
| December | 18.9 °F | 35.1 °F | 4.37 in. |
| Annual | 36 °F | 55 °F | 48.03 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 |