Redcliff, Alberta climate data is summarized below. Average annual temperatures range from -0.5 °C (low) to 12.1 °C (high). Annual precipitation averages 362 Millimeters. Redcliff is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.72 °C | -2.97 °C | 0 mm |
| February | -12.04 °C | -1.35 °C | 0 mm |
| March | -5.78 °C | 5.96 °C | 5 mm |
| April | -0.72 °C | 12.39 °C | 46 mm |
| May | 4.8 °C | 18.4 °C | 63 mm |
| June | 9.45 °C | 22.38 °C | 91 mm |
| July | 12.67 °C | 27.17 °C | 53 mm |
| August | 11.45 °C | 26.63 °C | 40 mm |
| September | 6.43 °C | 21.48 °C | 35 mm |
| October | 0.42 °C | 13.8 °C | 26 mm |
| November | -6.4 °C | 4.55 °C | 3 mm |
| December | -14.12 °C | -3.91 °C | 0 mm |
| Annual | -0.5 °C | 12.1 °C | 362 mm |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |