Clark Mills, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38 °F (low) to 56.9 °F (high). Annual precipitation averages 46 Inches. Clark Mills 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.1 °F | 30.1 °F | 3.1 in. |
| February | 14.9 °F | 32.6 °F | 2.84 in. |
| March | 23.3 °F | 40.9 °F | 3.25 in. |
| April | 35.0 °F | 55.7 °F | 3.71 in. |
| May | 46.3 °F | 69.0 °F | 3.87 in. |
| June | 55.9 °F | 77.1 °F | 4.86 in. |
| July | 60.7 °F | 81.8 °F | 4.11 in. |
| August | 59.3 °F | 80.0 °F | 4.08 in. |
| September | 52.0 °F | 72.9 °F | 4.02 in. |
| October | 41.4 °F | 59.7 °F | 4.7 in. |
| November | 31.6 °F | 47.1 °F | 3.76 in. |
| December | 21.8 °F | 35.7 °F | 3.71 in. |
| Annual | 38 °F | 56.9 °F | 46.01 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |