Garrattsville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.1 °F (low) to 56.4 °F (high). Annual precipitation averages 46.1 Inches. Garrattsville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.8 °F | 31.0 °F | 3.2 in. |
| February | 14.1 °F | 33.6 °F | 2.65 in. |
| March | 20.5 °F | 41.6 °F | 3.53 in. |
| April | 32.0 °F | 55.7 °F | 3.99 in. |
| May | 43.0 °F | 68.1 °F | 3.87 in. |
| June | 52.0 °F | 75.4 °F | 4.8 in. |
| July | 56.8 °F | 79.6 °F | 4.51 in. |
| August | 55.0 °F | 78.3 °F | 4.5 in. |
| September | 48.2 °F | 71.7 °F | 3.95 in. |
| October | 38.2 °F | 59.4 °F | 4.09 in. |
| November | 28.4 °F | 46.5 °F | 3.4 in. |
| December | 20.6 °F | 35.8 °F | 3.58 in. |
| Annual | 35.1 °F | 56.4 °F | 46.07 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |