Souris, Manitoba climate data is summarized below. Average annual temperatures range from -2.6 °C (low) to 8.8 °C (high). Annual precipitation averages 592 Millimeters. Souris 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. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.78 °C | -10 °C | 0 mm |
| February | -19.65 °C | -9 °C | 0 mm |
| March | -10.68 °C | 0.11 °C | 8 mm |
| April | -2.03 °C | 9.82 °C | 36 mm |
| May | 4.32 °C | 17.46 °C | 81 mm |
| June | 10.55 °C | 22.62 °C | 149 mm |
| July | 13.02 °C | 25.39 °C | 135 mm |
| August | 11.36 °C | 25.23 °C | 96 mm |
| September | 6.72 °C | 20.45 °C | 52 mm |
| October | 0.39 °C | 11.77 °C | 33 mm |
| November | -8.11 °C | 1.17 °C | 2 mm |
| December | -17.8 °C | -9.32 °C | 0 mm |
| Annual | -2.6 °C | 8.8 °C | 592 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 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |