Byron, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.6 °F (low) to 57.6 °F (high). Annual precipitation averages 35 Inches. Byron 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 Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.6 °F | 32.6 °F | 2.36 in. |
| February | 18.0 °F | 34.0 °F | 1.76 in. |
| March | 25.1 °F | 42.2 °F | 2.47 in. |
| April | 35.8 °F | 56.0 °F | 2.99 in. |
| May | 47.1 °F | 68.6 °F | 3.12 in. |
| June | 56.8 °F | 77.2 °F | 3.4 in. |
| July | 61.4 °F | 81.0 °F | 3.49 in. |
| August | 60.1 °F | 79.9 °F | 3.24 in. |
| September | 53.1 °F | 73.2 °F | 3.26 in. |
| October | 42.7 °F | 60.8 °F | 3.46 in. |
| November | 32.8 °F | 48.3 °F | 2.76 in. |
| December | 24.4 °F | 37.8 °F | 2.64 in. |
| Annual | 39.6 °F | 57.6 °F | 34.95 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |