South Nyack, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.6 °F (low) to 62.2 °F (high). Annual precipitation averages 48.4 Inches. South Nyack is located in USDA Plant Hardiness Zone 7a. 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 | 21.7 °F | 38.3 °F | 3.61 in. |
| February | 23.8 °F | 40.9 °F | 2.7 in. |
| March | 30.7 °F | 48.6 °F | 4.05 in. |
| April | 41.2 °F | 61.1 °F | 3.89 in. |
| May | 51.1 °F | 71.2 °F | 3.65 in. |
| June | 60.1 °F | 80.2 °F | 4.65 in. |
| July | 65.6 °F | 84.8 °F | 4.28 in. |
| August | 63.9 °F | 82.9 °F | 4.73 in. |
| September | 56.6 °F | 76.7 °F | 4.49 in. |
| October | 45.0 °F | 64.4 °F | 4.4 in. |
| November | 35.3 °F | 54.0 °F | 3.8 in. |
| December | 28.3 °F | 43.3 °F | 4.13 in. |
| Annual | 43.6 °F | 62.2 °F | 48.38 in. |
| 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |