Dover Plains, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.7 °F (low) to 60.4 °F (high). Annual precipitation averages 47.6 Inches. Dover Plains 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 | 16.1 °F | 35.3 °F | 3.32 in. |
| February | 17.9 °F | 38.3 °F | 2.69 in. |
| March | 25.7 °F | 46.6 °F | 3.62 in. |
| April | 36.2 °F | 59.8 °F | 3.6 in. |
| May | 46.7 °F | 70.8 °F | 3.7 in. |
| June | 55.6 °F | 78.9 °F | 4.49 in. |
| July | 60.9 °F | 84.1 °F | 4.7 in. |
| August | 59.4 °F | 82.3 °F | 4.61 in. |
| September | 51.8 °F | 74.8 °F | 4.53 in. |
| October | 40.4 °F | 62.7 °F | 4.76 in. |
| November | 30.6 °F | 51.1 °F | 3.55 in. |
| December | 22.5 °F | 40.0 °F | 4.04 in. |
| Annual | 38.7 °F | 60.4 °F | 47.61 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°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 |