Monsey, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.4 °C (low) to 16.5 °C (high). Annual precipitation averages 1266.2 Millimeters. Monsey 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 | -6.3 °C | 3.1 °C | 92.96 mm |
| February | -5.6 °C | 4.9 °C | 69.6 mm |
| March | -1.7 °C | 9.3 °C | 106.93 mm |
| April | 4.2 °C | 16.2 °C | 101.35 mm |
| May | 9.6 °C | 21.7 °C | 97.03 mm |
| June | 14.6 °C | 25.9 °C | 124.21 mm |
| July | 17.3 °C | 29 °C | 108.2 mm |
| August | 16.3 °C | 27.9 °C | 124.21 mm |
| September | 12.4 °C | 24.2 °C | 116.33 mm |
| October | 6.1 °C | 17.6 °C | 115.57 mm |
| November | 1 °C | 11.7 °C | 99.31 mm |
| December | -3 °C | 6 °C | 110.49 mm |
| Annual | 5.4 °C | 16.5 °C | 1266.19 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |