Bath, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.9 °F (low) to 57.8 °F (high). Annual precipitation averages 32.9 Inches. Bath 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 | 14.4 °F | 32.2 °F | 2.12 in. |
| February | 15.2 °F | 34.7 °F | 1.59 in. |
| March | 22.0 °F | 43.0 °F | 2.21 in. |
| April | 32.4 °F | 56.6 °F | 2.81 in. |
| May | 43.4 °F | 69.0 °F | 2.97 in. |
| June | 52.8 °F | 77.5 °F | 3.3 in. |
| July | 57.0 °F | 81.8 °F | 3.19 in. |
| August | 55.5 °F | 80.3 °F | 3.27 in. |
| September | 48.7 °F | 73.3 °F | 3.72 in. |
| October | 38.6 °F | 60.8 °F | 2.98 in. |
| November | 29.2 °F | 47.7 °F | 2.44 in. |
| December | 21.2 °F | 37.1 °F | 2.31 in. |
| Annual | 35.9 °F | 57.8 °F | 32.91 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 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |