Grand Rapids, Manitoba climate data is summarized below. Average annual temperatures range from 24.1 °F (low) to 39.8 °F (high). Annual precipitation averages 18.6 Inches. Grand Rapids is located in USDA Plant Hardiness Zone 2b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -30 °F | -25.6 °F | 0 in. |
| February | -30.1 °F | -24.6 °F | 0 in. |
| March | -26.7 °F | -20.1 °F | 0 in. |
| April | -21.9 °F | -15.5 °F | 304.8 in. |
| May | -17.7 °F | -11.9 °F | 1066.8 in. |
| June | -13.4 °F | -8.3 °F | 2540 in. |
| July | -11.3 °F | -6.4 °F | 2616.2 in. |
| August | -11.3 °F | -6.4 °F | 2743.2 in. |
| September | -13.4 °F | -8.6 °F | 1346.2 in. |
| October | -16.5 °F | -13.3 °F | 1371.6 in. |
| November | -21.9 °F | -18.9 °F | 0 in. |
| December | -28.5 °F | -24.7 °F | 0 in. |
| Annual | 24.1 °F | 39.8 °F | 18.59 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 2b : -45°F to -40°F |
| Current Drought Conditions | Normal |