Hagersville, Ontario climate data is summarized below. Average annual temperatures range from 4 °C (low) to 13.6 °C (high). Annual precipitation averages 637 Millimeters. Hagersville 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.13 °C | -0.84 °C | 16 mm |
| February | -9.73 °C | -1.3 °C | 15 mm |
| March | -3.78 °C | 5.8 °C | 49 mm |
| April | 2.08 °C | 12.85 °C | 57 mm |
| May | 8.2 °C | 19.93 °C | 68 mm |
| June | 13.69 °C | 24.76 °C | 75 mm |
| July | 16.03 °C | 27.24 °C | 89 mm |
| August | 15.49 °C | 26.41 °C | 77 mm |
| September | 11.43 °C | 22.21 °C | 63 mm |
| October | 6.21 °C | 15.34 °C | 53 mm |
| November | 0.34 °C | 8.54 °C | 41 mm |
| December | -3.88 °C | 2.33 °C | 34 mm |
| Annual | 4 °C | 13.6 °C | 637 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |