New Rochelle, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 8.5 °C (low) to 16.8 °C (high). Annual precipitation averages 1222.5 Millimeters. New Rochelle is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.2 °C | 4.1 °C | 93.47 mm |
| February | -2.7 °C | 5.2 °C | 72.39 mm |
| March | 0.8 °C | 9.1 °C | 104.65 mm |
| April | 6.3 °C | 15.7 °C | 98.81 mm |
| May | 11.7 °C | 21.3 °C | 95.76 mm |
| June | 17.1 °C | 26.3 °C | 116.08 mm |
| July | 20.4 °C | 29.3 °C | 105.92 mm |
| August | 19.9 °C | 28.3 °C | 113.79 mm |
| September | 16.2 °C | 24.8 °C | 111.76 mm |
| October | 10.1 °C | 18.4 °C | 106.93 mm |
| November | 4.7 °C | 12.4 °C | 92.71 mm |
| December | 0.3 °C | 7.1 °C | 110.24 mm |
| Annual | 8.5 °C | 16.8 °C | 1222.51 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |