Owls Head, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.2 °F (low) to 52.9 °F (high). Annual precipitation averages 51.2 Inches. Owls Head is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.9 °F | 32.1 °F | 4.5 in. |
| February | 19.7 °F | 33.5 °F | 3.77 in. |
| March | 26.0 °F | 39.3 °F | 4.76 in. |
| April | 35.4 °F | 49.1 °F | 4.7 in. |
| May | 44.0 °F | 58.6 °F | 3.74 in. |
| June | 52.1 °F | 67.1 °F | 4.02 in. |
| July | 57.9 °F | 73.2 °F | 3.24 in. |
| August | 58.1 °F | 73.2 °F | 2.99 in. |
| September | 53.0 °F | 67.0 °F | 4.43 in. |
| October | 44.2 °F | 56.5 °F | 5.25 in. |
| November | 35.7 °F | 47.4 °F | 4.88 in. |
| December | 25.8 °F | 38.1 °F | 4.96 in. |
| Annual | 39.2 °F | 52.9 °F | 51.24 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |