Blackfalds, Alberta climate data is summarized below. Average annual temperatures range from 26.2 °F (low) to 47 °F (high). Annual precipitation averages 20 Inches. Blackfalds 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 | -26.2 °F | -21.1 °F | 0 in. |
| February | -26 °F | -20.2 °F | 0 in. |
| March | -23.3 °F | -17.6 °F | 0 in. |
| April | -19.7 °F | -13.2 °F | 965.2 in. |
| May | -16.4 °F | -8.7 °F | 2159 in. |
| June | -13.7 °F | -6.8 °F | 3098.8 in. |
| July | -12.3 °F | -5.1 °F | 2717.8 in. |
| August | -13.2 °F | -5.5 °F | 1879.6 in. |
| September | -15.7 °F | -7.6 °F | 1295.4 in. |
| October | -18.6 °F | -12 °F | 762 in. |
| November | -22.8 °F | -17.9 °F | 0 in. |
| December | -26.9 °F | -21.9 °F | 0 in. |
| Annual | 26.2 °F | 47 °F | 19.96 in. |
| 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 : -35°F to -30°F |
| Current Drought Conditions | Moderate Drought |