Cazenovia, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.4 °C (low) to 12.9 °C (high). Annual precipitation averages 1169.4 Millimeters. Cazenovia 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 | -10.6 °C | -1.2 °C | 77.98 mm |
| February | -9.7 °C | -0.1 °C | 66.8 mm |
| March | -5.8 °C | 4.3 °C | 86.87 mm |
| April | 0.9 °C | 12.1 °C | 99.57 mm |
| May | 7.1 °C | 19.2 °C | 100.33 mm |
| June | 12.2 °C | 23.8 °C | 114.05 mm |
| July | 14.6 °C | 26.2 °C | 114.81 mm |
| August | 13.8 °C | 25.4 °C | 108.2 mm |
| September | 10 °C | 21.7 °C | 106.17 mm |
| October | 4.2 °C | 14.6 °C | 108.97 mm |
| November | -1.1 °C | 7.7 °C | 92.46 mm |
| December | -6.4 °C | 1.6 °C | 93.22 mm |
| Annual | 2.4 °C | 12.9 °C | 1169.43 mm |
| 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 : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |