Dauphin, Manitoba climate data is summarized below. Average annual temperatures range from -2.8 °C (low) to 7.9 °C (high). Annual precipitation averages 489 Millimeters. Dauphin 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -20.05 °C | -10.65 °C | 0 mm |
| February | -19.98 °C | -9.55 °C | 0 mm |
| March | -11.65 °C | -1.22 °C | 0 mm |
| April | -2.74 °C | 8.54 °C | 24 mm |
| May | 3.92 °C | 16.36 °C | 69 mm |
| June | 10.5 °C | 21.94 °C | 120 mm |
| July | 13.29 °C | 24.74 °C | 92 mm |
| August | 11.77 °C | 24.24 °C | 81 mm |
| September | 6.86 °C | 19.43 °C | 51 mm |
| October | 0.82 °C | 10.87 °C | 52 mm |
| November | -7.59 °C | 0.41 °C | 0 mm |
| December | -18.13 °C | -9.95 °C | 0 mm |
| Annual | -2.8 °C | 7.9 °C | 489 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| 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 | Normal |