Northville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.6 °F (low) to 55.5 °F (high). Annual precipitation averages 48.7 Inches. Northville is located in USDA Plant Hardiness Zone 5a. 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 | 11.2 °F | 29.4 °F | 3.9 in. |
| February | 12.5 °F | 32.1 °F | 3.08 in. |
| March | 20.8 °F | 40.5 °F | 3.66 in. |
| April | 32.7 °F | 54.7 °F | 4.08 in. |
| May | 44.8 °F | 67.4 °F | 4.08 in. |
| June | 53.9 °F | 75.4 °F | 4.62 in. |
| July | 59.0 °F | 79.8 °F | 4.36 in. |
| August | 57.2 °F | 78.1 °F | 4.34 in. |
| September | 49.8 °F | 71.0 °F | 4.01 in. |
| October | 38.3 °F | 58.3 °F | 4.52 in. |
| November | 28.3 °F | 45.4 °F | 3.64 in. |
| December | 18.8 °F | 34.3 °F | 4.45 in. |
| Annual | 35.6 °F | 55.5 °F | 48.74 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 5a : -20°F to -15°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 |