Youngstown, 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 13.9 °C (high). Annual precipitation averages 868.7 Millimeters. Youngstown 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 | -6.4 °C | 0.5 °C | 61.21 mm |
| February | -5.9 °C | 1.4 °C | 56.64 mm |
| March | -2.7 °C | 5.3 °C | 65.79 mm |
| April | 2.4 °C | 11.9 °C | 84.33 mm |
| May | 8.3 °C | 18.8 °C | 74.68 mm |
| June | 14.4 °C | 24.3 °C | 81.79 mm |
| July | 17.7 °C | 27.1 °C | 71.37 mm |
| August | 17.1 °C | 26.4 °C | 70.61 mm |
| September | 13.6 °C | 22.8 °C | 83.57 mm |
| October | 7.4 °C | 15.7 °C | 78.74 mm |
| November | 2.1 °C | 9.2 °C | 71.63 mm |
| December | -2.8 °C | 3.5 °C | 68.33 mm |
| Annual | 5.4 °C | 13.9 °C | 868.69 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |