Black Diamond, Alberta climate data is summarized below. Average annual temperatures range from 29.6 °F (low) to 50.5 °F (high). Annual precipitation averages 17.1 Inches. 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 | -24 °F | -18.3 °F | 0 in. |
| February | -23.5 °F | -17.6 °F | 0 in. |
| March | -21.4 °F | -15.3 °F | 0 in. |
| April | -19.1 °F | -12.7 °F | 457.2 in. |
| May | -16.2 °F | -9.4 °F | 2082.8 in. |
| June | -13.8 °F | -7.2 °F | 3149.6 in. |
| July | -12 °F | -4.8 °F | 1981.2 in. |
| August | -12.8 °F | -5.2 °F | 1320.8 in. |
| September | -15.3 °F | -7.5 °F | 1219.2 in. |
| October | -18 °F | -11.4 °F | 787.4 in. |
| November | -21.5 °F | -15.9 °F | 0 in. |
| December | -24.9 °F | -19.2 °F | 0 in. |
| Annual | 29.6 °F | 50.5 °F | 17.05 in. |
| 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 : -35°F to -30°F |
| Current Drought Conditions | Normal |