Presque Isle, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.4 °F (low) to 50.7 °F (high). Annual precipitation averages 38.1 Inches. Presque Isle is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.2 °F | 21.6 °F | 2.85 in. |
| February | 2.6 °F | 24.7 °F | 2.03 in. |
| March | 14.2 °F | 34.5 °F | 2.38 in. |
| April | 28.8 °F | 48.0 °F | 2.74 in. |
| May | 40.5 °F | 63.0 °F | 3.2 in. |
| June | 50.1 °F | 72.5 °F | 3.99 in. |
| July | 55.7 °F | 77.3 °F | 3.74 in. |
| August | 53.6 °F | 76.3 °F | 3.49 in. |
| September | 46.0 °F | 68.2 °F | 3.32 in. |
| October | 35.4 °F | 53.9 °F | 4.09 in. |
| November | 25.2 °F | 40.0 °F | 3.08 in. |
| December | 11.6 °F | 28.4 °F | 3.17 in. |
| Annual | 30.4 °F | 50.7 °F | 38.08 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |