McDame, British Columbia climate data is summarized below. Average annual temperatures range from -7.1 °C (low) to 0.6 °C (high). Annual precipitation averages 197 Millimeters. McDame is located in USDA Plant Hardiness Zone 2b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.81 °C | -10.16 °C | 0 mm |
| February | -17.86 °C | -8.89 °C | 0 mm |
| March | -17.89 °C | -8.43 °C | 0 mm |
| April | -9.96 °C | -1.5 °C | 2 mm |
| May | -1.48 °C | 6.71 °C | 20 mm |
| June | 3.86 °C | 12.73 °C | 42 mm |
| July | 5.67 °C | 14.44 °C | 42 mm |
| August | 4.79 °C | 13.32 °C | 37 mm |
| September | 0.66 °C | 7.3 °C | 36 mm |
| October | -3.96 °C | 0.4 °C | 18 mm |
| November | -13.18 °C | -7.55 °C | 0 mm |
| December | -17.63 °C | -10.5 °C | 0 mm |
| Annual | -7.1 °C | 0.6 °C | 197 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 2b : -42.8°C to -40°C |
| Current Drought Conditions | Normal |