Dominion City, Manitoba climate data is summarized below. Average annual temperatures range from -1.6 °C (low) to 9 °C (high). Annual precipitation averages 439 Millimeters. Dominion City is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.95 °C | -10.77 °C | 0 mm |
| February | -18.94 °C | -9.2 °C | 0 mm |
| March | -9.32 °C | 0.35 °C | 10 mm |
| April | -0.92 °C | 10.01 °C | 25 mm |
| May | 5.38 °C | 17.93 °C | 72 mm |
| June | 11.8 °C | 23.2 °C | 88 mm |
| July | 13.8 °C | 25.91 °C | 91 mm |
| August | 12.43 °C | 25.44 °C | 79 mm |
| September | 7.92 °C | 20.59 °C | 57 mm |
| October | 1.77 °C | 11.99 °C | 14 mm |
| November | -6.55 °C | 1.77 °C | 3 mm |
| December | -16.74 °C | -8.9 °C | 0 mm |
| Annual | -1.6 °C | 9 °C | 439 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |