Radisson, Saskatchewan climate data is summarized below. Average annual temperatures range from -3.3 °C (low) to 8.3 °C (high). Annual precipitation averages 396 Millimeters. Radisson is located in USDA Plant Hardiness Zone 3a. 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 | -18.66 °C | -8.96 °C | 0 mm |
| February | -19.29 °C | -8.84 °C | 0 mm |
| March | -11.16 °C | -0.87 °C | 0 mm |
| April | -2.83 °C | 9.26 °C | 22 mm |
| May | 3.83 °C | 17.97 °C | 55 mm |
| June | 9.38 °C | 21.81 °C | 117 mm |
| July | 12.15 °C | 24.77 °C | 80 mm |
| August | 10.63 °C | 23.91 °C | 48 mm |
| September | 5.42 °C | 19.68 °C | 36 mm |
| October | -0.79 °C | 10.57 °C | 38 mm |
| November | -9.32 °C | -0.48 °C | 0 mm |
| December | -18.31 °C | -9.84 °C | 0 mm |
| Annual | -3.3 °C | 8.3 °C | 396 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Normal |