Steinbach, Manitoba climate data is summarized below. Average annual temperatures range from -1.8 °C (low) to 8.7 °C (high). Annual precipitation averages 350 Millimeters. Steinbach is located in USDA Plant Hardiness Zone 3b. 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 | -20.5 °C | -11 °C | 0 mm |
| February | -19.49 °C | -9.17 °C | 0 mm |
| March | -9.94 °C | 0.45 °C | 8 mm |
| April | -1.14 °C | 9.77 °C | 12 mm |
| May | 5.25 °C | 17.33 °C | 33 mm |
| June | 11.45 °C | 22.81 °C | 65 mm |
| July | 13.77 °C | 25.58 °C | 80 mm |
| August | 12.7 °C | 24.82 °C | 93 mm |
| September | 7.99 °C | 19.84 °C | 48 mm |
| October | 2.02 °C | 11.48 °C | 8 mm |
| November | -6.41 °C | 1.21 °C | 3 mm |
| December | -17.18 °C | -9.21 °C | 0 mm |
| Annual | -1.8 °C | 8.7 °C | 350 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |