Coaldale, Alberta climate data is summarized below. Average annual temperatures range from 32.6 °F (low) to 54.6 °F (high). Annual precipitation averages 14.8 Inches. Coaldale is located in USDA Plant Hardiness Zone 4b. 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 | -23.5 °F | -18 °F | 0 in. |
| February | -23 °F | -16.9 °F | 0 in. |
| March | -20.2 °F | -13.9 °F | 50.8 in. |
| April | -18.1 °F | -11.1 °F | 1041.4 in. |
| May | -15.2 °F | -7.9 °F | 1828.8 in. |
| June | -12.7 °F | -5.7 °F | 2616.2 in. |
| July | -11 °F | -3.2 °F | 1320.8 in. |
| August | -11.8 °F | -3.4 °F | 889 in. |
| September | -14.1 °F | -6 °F | 939.8 in. |
| October | -16.9 °F | -10.1 °F | 736.6 in. |
| November | -20.6 °F | -14.8 °F | 101.6 in. |
| December | -24.2 °F | -18.6 °F | 0 in. |
| Annual | 32.6 °F | 54.6 °F | 14.77 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |