Carman, Manitoba climate data is summarized below. Average annual temperatures range from -1.6 °C (low) to 8.9 °C (high). Annual precipitation averages 253 Millimeters. Carman 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 | -19.48 °C | -10.23 °C | 0 mm |
| February | -18.66 °C | -9.08 °C | 0 mm |
| March | -9.44 °C | -0.04 °C | 5 mm |
| April | -1.22 °C | 9.7 °C | 7 mm |
| May | 5.02 °C | 17.41 °C | 31 mm |
| June | 11.54 °C | 22.81 °C | 47 mm |
| July | 13.93 °C | 25.52 °C | 66 mm |
| August | 12.69 °C | 25.38 °C | 69 mm |
| September | 7.88 °C | 20.48 °C | 21 mm |
| October | 1.78 °C | 11.84 °C | 4 mm |
| November | -6.57 °C | 1.53 °C | 3 mm |
| December | -16.67 °C | -9.09 °C | 0 mm |
| Annual | -1.6 °C | 8.9 °C | 253 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 | Normal |