Coalhurst, Alberta climate data is summarized below. Average annual temperatures range from 0.2 °C (low) to 12.5 °C (high). Annual precipitation averages 348 Millimeters. Coalhurst 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 | -10.2 °C | -0.14 °C | 0 mm |
| February | -9 °C | 1.75 °C | 0 mm |
| March | -4.46 °C | 6.87 °C | 2 mm |
| April | -0.69 °C | 11.86 °C | 37 mm |
| May | 4.41 °C | 17.48 °C | 65 mm |
| June | 8.74 °C | 21.41 °C | 99 mm |
| July | 11.72 °C | 25.85 °C | 48 mm |
| August | 10.42 °C | 25.52 °C | 32 mm |
| September | 6.37 °C | 21.04 °C | 34 mm |
| October | 1.56 °C | 13.69 °C | 29 mm |
| November | -4.94 °C | 5.38 °C | 2 mm |
| December | -11.5 °C | -1.43 °C | 0 mm |
| Annual | 0.2 °C | 12.5 °C | 348 mm |
| 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 : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |