Ogunquit, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.2 °C (low) to 13.2 °C (high). Annual precipitation averages 1260.6 Millimeters. Ogunquit is located in USDA Plant Hardiness Zone 6a. 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 | -7.7 °C | 0.7 °C | 93.98 mm |
| February | -7.1 °C | 1.9 °C | 89.41 mm |
| March | -3.1 °C | 5.6 °C | 116.84 mm |
| April | 2.1 °C | 11.6 °C | 116.33 mm |
| May | 7.3 °C | 17.2 °C | 97.54 mm |
| June | 12.3 °C | 22.1 °C | 111.25 mm |
| July | 15.8 °C | 25.3 °C | 93.22 mm |
| August | 15.5 °C | 24.9 °C | 90.93 mm |
| September | 12 °C | 21 °C | 103.38 mm |
| October | 6.3 °C | 14.9 °C | 128.78 mm |
| November | 1.1 °C | 9.3 °C | 103.63 mm |
| December | -3.9 °C | 3.8 °C | 115.32 mm |
| Annual | 4.2 °C | 13.2 °C | 1260.61 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |