Town Line, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39 °F (low) to 56.8 °F (high). Annual precipitation averages 42.6 Inches. Town Line 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 | 17.3 °F | 32.3 °F | 3.36 in. |
| February | 17.7 °F | 33.6 °F | 2.51 in. |
| March | 24.6 °F | 42.0 °F | 3.21 in. |
| April | 35.3 °F | 55.1 °F | 3.44 in. |
| May | 46.5 °F | 67.2 °F | 3.31 in. |
| June | 56.1 °F | 75.4 °F | 4.0 in. |
| July | 60.6 °F | 79.6 °F | 3.54 in. |
| August | 59.3 °F | 79.0 °F | 3.5 in. |
| September | 52.3 °F | 72.5 °F | 4.13 in. |
| October | 41.8 °F | 59.9 °F | 4.23 in. |
| November | 32.4 °F | 47.8 °F | 3.88 in. |
| December | 24.0 °F | 37.4 °F | 3.47 in. |
| Annual | 39 °F | 56.8 °F | 42.58 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |