Sedgwick, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.9 °F (low) to 54.1 °F (high). Annual precipitation averages 49.5 Inches. Sedgwick is located in USDA Plant Hardiness Zone 5b. 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 | 12.9 °F | 29.2 °F | 4.04 in. |
| February | 14.5 °F | 31.6 °F | 3.45 in. |
| March | 21.7 °F | 39.4 °F | 4.19 in. |
| April | 32.3 °F | 51.2 °F | 4.4 in. |
| May | 42.9 °F | 63.0 °F | 3.88 in. |
| June | 52.2 °F | 72.2 °F | 4.15 in. |
| July | 58.5 °F | 77.9 °F | 3.2 in. |
| August | 57.2 °F | 77.0 °F | 3.16 in. |
| September | 49.8 °F | 69.5 °F | 3.98 in. |
| October | 39.4 °F | 57.2 °F | 5.3 in. |
| November | 29.9 °F | 45.7 °F | 4.87 in. |
| December | 18.9 °F | 35.0 °F | 4.88 in. |
| Annual | 35.9 °F | 54.1 °F | 49.5 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |