Bay Shore, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.8 °C (low) to 16.3 °C (high). Annual precipitation averages 1239.5 Millimeters. Bay Shore 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.6 °C | 4.2 °C | 98.3 mm |
| February | -3.1 °C | 5.2 °C | 86.11 mm |
| March | 0.3 °C | 8.7 °C | 121.92 mm |
| April | 5.5 °C | 14.9 °C | 108.2 mm |
| May | 10.8 °C | 20.3 °C | 92.96 mm |
| June | 16.3 °C | 25.3 °C | 105.16 mm |
| July | 19.7 °C | 28.3 °C | 85.6 mm |
| August | 19.1 °C | 27.9 °C | 105.16 mm |
| September | 15.5 °C | 23.8 °C | 99.06 mm |
| October | 9.4 °C | 17.7 °C | 121.92 mm |
| November | 3.9 °C | 12.3 °C | 93.22 mm |
| December | -0.3 °C | 7.1 °C | 121.92 mm |
| Annual | 7.8 °C | 16.3 °C | 1239.53 mm |
| 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |