Lefaivre, Ontario climate data is summarized below. Average annual temperatures range from 33.9 °F (low) to 53.6 °F (high). Annual precipitation averages 16.4 Inches. Lefaivre is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26 °F | -20.5 °F | 0 in. |
| February | -25.8 °F | -20 °F | 0 in. |
| March | -22.3 °F | -16.4 °F | 304.8 in. |
| April | -17.5 °F | -11.1 °F | 711.2 in. |
| May | -13.7 °F | -6.5 °F | 939.8 in. |
| June | -10.8 °F | -4.1 °F | 1803.4 in. |
| July | -9.5 °F | -2.7 °F | 2260.6 in. |
| August | -10 °F | -3.3 °F | 2057.4 in. |
| September | -12.6 °F | -5.8 °F | 1193.8 in. |
| October | -15.7 °F | -10.1 °F | 863.6 in. |
| November | -19.1 °F | -14.2 °F | 330.2 in. |
| December | -23.3 °F | -18.9 °F | 101.6 in. |
| Annual | 33.9 °F | 53.6 °F | 16.38 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |