Black Diamond, Alberta climate data is summarized below. Average annual temperatures range from -1.4 °C (low) to 10.3 °C (high). Annual precipitation averages 433 Millimeters. Black Diamond 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.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.13 °C | -0.99 °C | 0 mm |
| February | -10.32 °C | 0.24 °C | 0 mm |
| March | -6.45 °C | 4.4 °C | 0 mm |
| April | -2.37 °C | 9.1 °C | 18 mm |
| May | 2.76 °C | 15 °C | 82 mm |
| June | 7.08 °C | 18.98 °C | 124 mm |
| July | 10.41 °C | 23.33 °C | 78 mm |
| August | 9.04 °C | 22.62 °C | 52 mm |
| September | 4.5 °C | 18.52 °C | 48 mm |
| October | -0.34 °C | 11.42 °C | 31 mm |
| November | -6.68 °C | 3.39 °C | 0 mm |
| December | -12.8 °C | -2.61 °C | 0 mm |
| Annual | -1.4 °C | 10.3 °C | 433 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 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |