Montréal, Quebec climate data is summarized below. Average annual temperatures range from 3.6 °C (low) to 11.8 °C (high). Annual precipitation averages 939 Millimeters. Montréal is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.49 °C | -4.23 °C | 16 mm |
| February | -11.23 °C | -3.8 °C | 19 mm |
| March | -5.38 °C | 3.06 °C | 55 mm |
| April | 2.43 °C | 11.71 °C | 106 mm |
| May | 9.43 °C | 19.28 °C | 93 mm |
| June | 14.57 °C | 23.68 °C | 104 mm |
| July | 17.36 °C | 26.26 °C | 135 mm |
| August | 16.67 °C | 25.41 °C | 111 mm |
| September | 11.96 °C | 20.98 °C | 72 mm |
| October | 6 °C | 13.37 °C | 109 mm |
| November | -0.14 °C | 6.45 °C | 74 mm |
| December | -7.28 °C | -1.37 °C | 45 mm |
| Annual | 3.6 °C | 11.8 °C | 939 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |