Pearl River, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.8 °F (low) to 61.9 °F (high). Annual precipitation averages 48.2 Inches. Pearl River is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.2 °F | 37.9 °F | 3.47 in. |
| February | 23.0 °F | 40.8 °F | 2.64 in. |
| March | 30.0 °F | 48.7 °F | 4.06 in. |
| April | 40.5 °F | 61.2 °F | 3.94 in. |
| May | 50.1 °F | 71.0 °F | 3.71 in. |
| June | 59.6 °F | 79.6 °F | 4.81 in. |
| July | 64.7 °F | 84.6 °F | 4.35 in. |
| August | 63.2 °F | 82.7 °F | 4.8 in. |
| September | 55.7 °F | 76.1 °F | 4.21 in. |
| October | 44.1 °F | 64.0 °F | 4.4 in. |
| November | 34.5 °F | 53.2 °F | 3.75 in. |
| December | 27.4 °F | 43.0 °F | 4.09 in. |
| Annual | 42.8 °F | 61.9 °F | 48.23 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 |