Piermont, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.1 °F (low) to 62.4 °F (high). Annual precipitation averages 48.4 Inches. Piermont is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.4 °F | 38.7 °F | 3.6 in. |
| February | 24.2 °F | 41.3 °F | 2.75 in. |
| March | 31.2 °F | 49.0 °F | 4.03 in. |
| April | 41.5 °F | 61.2 °F | 3.9 in. |
| May | 51.4 °F | 71.4 °F | 3.71 in. |
| June | 60.6 °F | 80.5 °F | 4.68 in. |
| July | 66.0 °F | 85.1 °F | 4.23 in. |
| August | 64.4 °F | 83.1 °F | 4.69 in. |
| September | 57.1 °F | 76.7 °F | 4.5 in. |
| October | 45.5 °F | 64.6 °F | 4.32 in. |
| November | 35.8 °F | 54.0 °F | 3.73 in. |
| December | 28.7 °F | 43.4 °F | 4.21 in. |
| Annual | 44.1 °F | 62.4 °F | 48.35 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |