Yorktown Heights, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.5 °C (low) to 16.3 °C (high). Annual precipitation averages 1264.7 Millimeters. Yorktown Heights is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.6 °C | 2.7 °C | 95 mm |
| February | -5.6 °C | 4.4 °C | 69.09 mm |
| March | -1.8 °C | 8.8 °C | 99.82 mm |
| April | 4.1 °C | 16.2 °C | 99.31 mm |
| May | 9.4 °C | 21.9 °C | 90.17 mm |
| June | 14.6 °C | 26.3 °C | 114.3 mm |
| July | 17.4 °C | 29.1 °C | 119.63 mm |
| August | 16.8 °C | 27.9 °C | 130.3 mm |
| September | 12.7 °C | 24.1 °C | 120.4 mm |
| October | 6.4 °C | 17.7 °C | 117.6 mm |
| November | 1.2 °C | 11.3 °C | 105.16 mm |
| December | -3.2 °C | 5.4 °C | 103.89 mm |
| Annual | 5.5 °C | 16.3 °C | 1264.67 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |