Grandview, Manitoba climate data is summarized below. Average annual temperatures range from 25.9 °F (low) to 45.5 °F (high). Annual precipitation averages 19.5 Inches. Grandview is located in USDA Plant Hardiness Zone 3a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -29.2 °F | -24 °F | 0 in. |
| February | -29.2 °F | -23.4 °F | 0 in. |
| March | -24.7 °F | -18.7 °F | 0 in. |
| April | -19.5 °F | -13.2 °F | 558.8 in. |
| May | -15.8 °F | -8.6 °F | 1651 in. |
| June | -12.3 °F | -5.7 °F | 3378.2 in. |
| July | -10.8 °F | -4.2 °F | 2413 in. |
| August | -11.7 °F | -4.6 °F | 2082.8 in. |
| September | -14.4 °F | -7.2 °F | 1193.8 in. |
| October | -17.7 °F | -12.1 °F | 1270 in. |
| November | -22.5 °F | -18 °F | 0 in. |
| December | -28.3 °F | -23.7 °F | 0 in. |
| Annual | 25.9 °F | 45.5 °F | 19.46 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°F to -35°F |
| Current Drought Conditions | Normal |