Baysville, Ontario climate data is summarized below. Average annual temperatures range from -0.5 °C (low) to 10.6 °C (high). Annual precipitation averages 677 Millimeters. 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 | -14.8 °C | -4.79 °C | 0 mm |
| February | -15.88 °C | -4.74 °C | 0 mm |
| March | -9.1 °C | 1.85 °C | 27 mm |
| April | -2 °C | 9.93 °C | 65 mm |
| May | 4.89 °C | 18.27 °C | 76 mm |
| June | 10.21 °C | 22.69 °C | 82 mm |
| July | 12.43 °C | 24.76 °C | 92 mm |
| August | 11.68 °C | 23.9 °C | 90 mm |
| September | 7.25 °C | 19.44 °C | 82 mm |
| October | 2.56 °C | 12.18 °C | 105 mm |
| November | -3.71 °C | 5.17 °C | 58 mm |
| December | -10.09 °C | -2.13 °C | 0 mm |
| Annual | -0.5 °C | 10.6 °C | 677 mm |
| 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 : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |