Castile, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.3 °F (low) to 55.2 °F (high). Annual precipitation averages 39.2 Inches. Castile is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.3 °F | 30.1 °F | 2.56 in. |
| February | 15.1 °F | 32.1 °F | 2.02 in. |
| March | 21.7 °F | 39.9 °F | 2.69 in. |
| April | 32.6 °F | 53.4 °F | 3.19 in. |
| May | 44.2 °F | 66.4 °F | 3.32 in. |
| June | 53.8 °F | 74.5 °F | 3.96 in. |
| July | 58.1 °F | 78.5 °F | 4.06 in. |
| August | 56.1 °F | 77.3 °F | 3.87 in. |
| September | 49.4 °F | 70.9 °F | 3.74 in. |
| October | 39.4 °F | 58.2 °F | 3.85 in. |
| November | 29.7 °F | 45.6 °F | 3.11 in. |
| December | 20.9 °F | 35.3 °F | 2.87 in. |
| Annual | 36.3 °F | 55.2 °F | 39.24 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |