Milo, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Annual precipitation averages 1124 Millimeters. Milo is located in USDA Plant Hardiness Zone 5a. 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 | -14.8 °C | -3.3 °C | 77.98 mm |
| February | -14.2 °C | -1.3 °C | 64.26 mm |
| March | -7.8 °C | 3.7 °C | 72.9 mm |
| April | -1.2 °C | 11 °C | 95 mm |
| May | 4.9 °C | 18.3 °C | 92.46 mm |
| June | 10.3 °C | 23.2 °C | 119.89 mm |
| July | 13.6 °C | 26.2 °C | 92.96 mm |
| August | 12.4 °C | 25.8 °C | 94.49 mm |
| September | 7.9 °C | 21.3 °C | 93.47 mm |
| October | 2.1 °C | 13.8 °C | 126.24 mm |
| November | -3.1 °C | 6.7 °C | 99.06 mm |
| December | -9.6 °C | 0.4 °C | 95.25 mm |
| Annual | 0 °C | 12.2 °C | 1123.96 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 5a : -28.9°C to -26.1°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 |