Innisfail, Alberta climate data is summarized below. Average annual temperatures range from -3.1 °C (low) to 9 °C (high). Annual precipitation averages 492 Millimeters. Innisfail 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.9 °C | -4.93 °C | 0 mm |
| February | -14.62 °C | -3.52 °C | 0 mm |
| March | -9.05 °C | 1.68 °C | 0 mm |
| April | -3.43 °C | 8.7 °C | 39 mm |
| May | 2.58 °C | 16.37 °C | 89 mm |
| June | 7.3 °C | 19.87 °C | 127 mm |
| July | 9.94 °C | 23.24 °C | 92 mm |
| August | 8.32 °C | 22.55 °C | 67 mm |
| September | 3.7 °C | 18.56 °C | 50 mm |
| October | -1.64 °C | 10.84 °C | 28 mm |
| November | -9.11 °C | 0.61 °C | 0 mm |
| December | -16.11 °C | -6.49 °C | 0 mm |
| Annual | -3.1 °C | 9 °C | 492 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| 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 | Abnormally Dry |