Beausejour, Manitoba climate data is summarized below. Average annual temperatures range from 27.9 °F (low) to 46.9 °F (high). Annual precipitation averages 21.4 Inches. Beausejour is located in USDA Plant Hardiness Zone 3b. 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 | -29.5 °F | -24.1 °F | 0 in. |
| February | -29.1 °F | -23.1 °F | 0 in. |
| March | -23.9 °F | -17.8 °F | 50.8 in. |
| April | -18.9 °F | -12.7 °F | 889 in. |
| May | -15.2 °F | -8.4 °F | 2540 in. |
| June | -11.6 °F | -5.3 °F | 3225.8 in. |
| July | -10.2 °F | -3.7 °F | 2489.2 in. |
| August | -10.8 °F | -4.2 °F | 1981.2 in. |
| September | -13.4 °F | -6.9 °F | 1371.6 in. |
| October | -16.8 °F | -11.6 °F | 1244.6 in. |
| November | -21.5 °F | -17.3 °F | 0 in. |
| December | -27.6 °F | -23.1 °F | 0 in. |
| Annual | 27.9 °F | 46.9 °F | 21.39 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |