La Prairie, Quebec climate data is summarized below. Average annual temperatures range from 3.4 °C (low) to 12.3 °C (high). Annual precipitation averages 934 Millimeters. La Prairie 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.45 °C | -3.79 °C | 20 mm |
| February | -11.18 °C | -3.5 °C | 22 mm |
| March | -5.25 °C | 3.21 °C | 65 mm |
| April | 2.43 °C | 12.37 °C | 108 mm |
| May | 9.2 °C | 19.91 °C | 95 mm |
| June | 14.36 °C | 24.4 °C | 97 mm |
| July | 17.02 °C | 26.98 °C | 128 mm |
| August | 16.26 °C | 26.07 °C | 84 mm |
| September | 11.54 °C | 21.55 °C | 72 mm |
| October | 5.84 °C | 14.02 °C | 111 mm |
| November | -0.19 °C | 7.01 °C | 75 mm |
| December | -7.07 °C | -0.94 °C | 57 mm |
| Annual | 3.4 °C | 12.3 °C | 934 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 |