Okotoks, Alberta climate data is summarized below. Average annual temperatures range from -1.1 °C (low) to 10.8 °C (high). Annual precipitation averages 394 Millimeters. Okotoks is located in USDA Plant Hardiness Zone 4a. 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 | -11.26 °C | -1.06 °C | 0 mm |
| February | -10.51 °C | -0.02 °C | 0 mm |
| March | -6.17 °C | 4.78 °C | 0 mm |
| April | -1.9 °C | 9.98 °C | 30 mm |
| May | 3.38 °C | 16 °C | 79 mm |
| June | 7.82 °C | 19.8 °C | 108 mm |
| July | 11.11 °C | 24.07 °C | 59 mm |
| August | 9.63 °C | 23.41 °C | 43 mm |
| September | 5.04 °C | 19.45 °C | 41 mm |
| October | -0.11 °C | 12.23 °C | 34 mm |
| November | -6.49 °C | 3.67 °C | 0 mm |
| December | -13.01 °C | -2.91 °C | 0 mm |
| Annual | -1.1 °C | 10.8 °C | 394 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 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |