Franklinville, 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 55.5 °F (high). Annual precipitation averages 44.8 Inches. Franklinville 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 | 13.3 °F | 30.3 °F | 3.3 in. |
| February | 13.4 °F | 32.8 °F | 2.5 in. |
| March | 20.3 °F | 41.2 °F | 3.02 in. |
| April | 31.4 °F | 54.2 °F | 3.5 in. |
| May | 42.4 °F | 66.8 °F | 3.85 in. |
| June | 51.3 °F | 74.6 °F | 4.28 in. |
| July | 55.6 °F | 78.4 °F | 4.55 in. |
| August | 54.2 °F | 77.0 °F | 4.01 in. |
| September | 47.7 °F | 70.6 °F | 4.28 in. |
| October | 37.1 °F | 58.4 °F | 4.27 in. |
| November | 28.5 °F | 46.1 °F | 3.66 in. |
| December | 20.5 °F | 35.4 °F | 3.59 in. |
| Annual | 34.6 °F | 55.5 °F | 44.81 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 |