Dorval, Quebec climate data is summarized below. Average annual temperatures range from 3.4 °C (low) to 11.8 °C (high). Annual precipitation averages 871 Millimeters. Dorval is located in USDA Plant Hardiness Zone 6a. 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 | -12 °C | -4.39 °C | 13 mm |
| February | -11.66 °C | -3.95 °C | 17 mm |
| March | -5.56 °C | 2.85 °C | 49 mm |
| April | 2.44 °C | 11.71 °C | 100 mm |
| May | 9.36 °C | 19.48 °C | 85 mm |
| June | 14.51 °C | 23.8 °C | 100 mm |
| July | 17.32 °C | 26.41 °C | 130 mm |
| August | 16.61 °C | 25.59 °C | 96 mm |
| September | 11.81 °C | 21.2 °C | 67 mm |
| October | 5.96 °C | 13.54 °C | 107 mm |
| November | -0.22 °C | 6.54 °C | 69 mm |
| December | -7.42 °C | -1.41 °C | 38 mm |
| Annual | 3.4 °C | 11.8 °C | 871 mm |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |