Grande Prairie, Alberta climate data is summarized below. Average annual temperatures range from -3 °C (low) to 7.8 °C (high). Annual precipitation averages 394 Millimeters. Grande Prairie is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.5 °C | -6.97 °C | 0 mm |
| February | -13.53 °C | -4.7 °C | 0 mm |
| March | -10.97 °C | -0.55 °C | 0 mm |
| April | -2.85 °C | 7.95 °C | 30 mm |
| May | 3.27 °C | 16.81 °C | 48 mm |
| June | 8.13 °C | 20.39 °C | 87 mm |
| July | 10.24 °C | 23.29 °C | 83 mm |
| August | 9.15 °C | 22.47 °C | 59 mm |
| September | 4.37 °C | 17.6 °C | 45 mm |
| October | -0.72 °C | 8.63 °C | 42 mm |
| November | -9.7 °C | -2.41 °C | 0 mm |
| December | -18.04 °C | -9.34 °C | 0 mm |
| Annual | -3 °C | 7.8 °C | 394 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Moderate Drought |