Baysville, Ontario climate data is summarized below. Average annual temperatures range from 31 °F (low) to 51 °F (high). Annual precipitation averages 26.6 Inches. Baysville 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 | -26 °F | -20.4 °F | 0 in. |
| February | -26.6 °F | -20.4 °F | 0 in. |
| March | -22.8 °F | -16.8 °F | 685.8 in. |
| April | -18.9 °F | -12.3 °F | 1651 in. |
| May | -15.1 °F | -7.6 °F | 1930.4 in. |
| June | -12.1 °F | -5.2 °F | 2082.8 in. |
| July | -10.9 °F | -4 °F | 2336.8 in. |
| August | -11.3 °F | -4.5 °F | 2286 in. |
| September | -13.8 °F | -7 °F | 2082.8 in. |
| October | -16.4 °F | -11 °F | 2667 in. |
| November | -19.8 °F | -14.9 °F | 1473.2 in. |
| December | -23.4 °F | -19 °F | 0 in. |
| Annual | 31 °F | 51 °F | 26.64 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 |
| Current Drought Conditions | Normal |