Rosendale, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.1 °F (low) to 61.8 °F (high). Annual precipitation averages 49.1 Inches. Rosendale is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.3 °F | 36.2 °F | 3.51 in. |
| February | 19.0 °F | 39.1 °F | 2.82 in. |
| March | 26.9 °F | 47.8 °F | 3.8 in. |
| April | 37.9 °F | 61.4 °F | 3.96 in. |
| May | 48.3 °F | 72.4 °F | 3.83 in. |
| June | 57.3 °F | 80.7 °F | 4.38 in. |
| July | 62.3 °F | 85.8 °F | 4.8 in. |
| August | 60.7 °F | 83.9 °F | 4.36 in. |
| September | 53.1 °F | 76.6 °F | 4.88 in. |
| October | 41.9 °F | 64.0 °F | 4.91 in. |
| November | 32.2 °F | 52.2 °F | 3.58 in. |
| December | 23.8 °F | 41.2 °F | 4.23 in. |
| Annual | 40.1 °F | 61.8 °F | 49.06 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |