Hannawa Falls, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.6 °F (low) to 54.4 °F (high). Annual precipitation averages 45.2 Inches. Hannawa Falls is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.6 °F | 26.5 °F | 3.22 in. |
| February | 8.6 °F | 28.8 °F | 2.68 in. |
| March | 18.6 °F | 38.3 °F | 3.06 in. |
| April | 32.6 °F | 53.0 °F | 3.79 in. |
| May | 44.9 °F | 67.3 °F | 3.66 in. |
| June | 54.3 °F | 75.1 °F | 4.46 in. |
| July | 58.9 °F | 79.7 °F | 4.33 in. |
| August | 57.3 °F | 78.3 °F | 3.73 in. |
| September | 49.2 °F | 70.8 °F | 4.35 in. |
| October | 38.4 °F | 57.6 °F | 4.86 in. |
| November | 28.0 °F | 44.7 °F | 3.74 in. |
| December | 16.2 °F | 32.7 °F | 3.35 in. |
| Annual | 34.6 °F | 54.4 °F | 45.23 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |