Fredonia, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.8 °F (low) to 57.5 °F (high). Annual precipitation averages 43.4 Inches. Fredonia is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.4 °F | 33.8 °F | 2.97 in. |
| February | 20.3 °F | 35.1 °F | 2.25 in. |
| March | 26.9 °F | 42.6 °F | 2.87 in. |
| April | 37.3 °F | 55.2 °F | 3.44 in. |
| May | 48.8 °F | 66.7 °F | 3.64 in. |
| June | 58.7 °F | 75.9 °F | 3.65 in. |
| July | 63.2 °F | 79.6 °F | 4.08 in. |
| August | 62.1 °F | 78.5 °F | 3.64 in. |
| September | 55.6 °F | 72.7 °F | 4.38 in. |
| October | 45.2 °F | 61.0 °F | 4.74 in. |
| November | 35.6 °F | 49.4 °F | 4.03 in. |
| December | 27.3 °F | 39.0 °F | 3.71 in. |
| Annual | 41.8 °F | 57.5 °F | 43.4 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |