Weyburn, Saskatchewan climate data is summarized below. Average annual temperatures range from -2.1 °C (low) to 9.7 °C (high). Annual precipitation averages 388 Millimeters. Weyburn is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.84 °C | -7.71 °C | 0 mm |
| February | -17.67 °C | -7.3 °C | 0 mm |
| March | -9.31 °C | 1.02 °C | 0 mm |
| April | -1.99 °C | 10.03 °C | 29 mm |
| May | 4.41 °C | 17.82 °C | 70 mm |
| June | 10.24 °C | 22.38 °C | 120 mm |
| July | 12.96 °C | 26.4 °C | 51 mm |
| August | 11.68 °C | 25.83 °C | 46 mm |
| September | 6.46 °C | 20.86 °C | 44 mm |
| October | 0.32 °C | 11.85 °C | 28 mm |
| November | -8.09 °C | 2.14 °C | 0 mm |
| December | -16.35 °C | -7.54 °C | 0 mm |
| Annual | -2.1 °C | 9.7 °C | 388 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |