Hortonville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.2 °F (low) to 58.1 °F (high). Annual precipitation averages 47.6 Inches. Hortonville is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.1 °F | 32.5 °F | 3.35 in. |
| February | 15.5 °F | 35.7 °F | 2.56 in. |
| March | 22.9 °F | 43.9 °F | 3.43 in. |
| April | 33.4 °F | 57.6 °F | 3.85 in. |
| May | 43.8 °F | 69.2 °F | 4.16 in. |
| June | 53.3 °F | 76.9 °F | 5.03 in. |
| July | 58.1 °F | 81.6 °F | 4.64 in. |
| August | 56.4 °F | 79.7 °F | 4.24 in. |
| September | 49.4 °F | 73.0 °F | 4.64 in. |
| October | 38.0 °F | 61.1 °F | 4.57 in. |
| November | 28.9 °F | 48.4 °F | 3.27 in. |
| December | 21.1 °F | 37.2 °F | 3.82 in. |
| Annual | 36.2 °F | 58.1 °F | 47.56 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 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 |