Edmonton, Alberta climate data is summarized below. Average annual temperatures range from -1.7 °C (low) to 9 °C (high). Annual precipitation averages 425 Millimeters. Edmonton is located in USDA Plant Hardiness Zone 4a. 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 | -14.47 °C | -5.79 °C | 0 mm |
| February | -13.69 °C | -4.43 °C | 0 mm |
| March | -8.93 °C | 0.77 °C | 0 mm |
| April | -1.85 °C | 9.23 °C | 35 mm |
| May | 4.29 °C | 17.67 °C | 70 mm |
| June | 9.09 °C | 21.45 °C | 81 mm |
| July | 11.77 °C | 24.12 °C | 112 mm |
| August | 10.14 °C | 23.44 °C | 58 mm |
| September | 5.52 °C | 19.17 °C | 38 mm |
| October | 0.33 °C | 10.73 °C | 31 mm |
| November | -7.4 °C | -0.64 °C | 0 mm |
| December | -15.5 °C | -7.68 °C | 0 mm |
| Annual | -1.7 °C | 9 °C | 425 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 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |