Grand Rapids, Manitoba climate data is summarized below. Average annual temperatures range from -4.4 °C (low) to 4.4 °C (high). Annual precipitation averages 472 Millimeters. 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 | -21.91 °C | -14.11 °C | 0 mm |
| February | -22.2 °C | -12.27 °C | 0 mm |
| March | -16.13 °C | -4.22 °C | 0 mm |
| April | -7.36 °C | 4.13 °C | 12 mm |
| May | 0.14 °C | 10.6 °C | 42 mm |
| June | 7.95 °C | 17.14 °C | 100 mm |
| July | 11.61 °C | 20.51 °C | 103 mm |
| August | 11.61 °C | 20.46 °C | 108 mm |
| September | 7.82 °C | 16.46 °C | 53 mm |
| October | 2.29 °C | 8.06 °C | 54 mm |
| November | -7.37 °C | -2.03 °C | 0 mm |
| December | -19.38 °C | -12.5 °C | 0 mm |
| Annual | -4.4 °C | 4.4 °C | 472 mm |
| 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 : -42.8°C to -40°C |
| Current Drought Conditions | Normal |