Gravelbourg, Saskatchewan climate data is summarized below. Average annual temperatures range from -1.4 °C (low) to 10.6 °C (high). Annual precipitation averages 242 Millimeters. Gravelbourg 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 | -15.29 °C | -5.75 °C | 0 mm |
| February | -15.18 °C | -4.97 °C | 0 mm |
| March | -8.18 °C | 2.68 °C | 0 mm |
| April | -1.85 °C | 10.95 °C | 15 mm |
| May | 4.83 °C | 18.34 °C | 31 mm |
| June | 10.23 °C | 22.63 °C | 59 mm |
| July | 13.02 °C | 26.98 °C | 62 mm |
| August | 11.92 °C | 26.28 °C | 43 mm |
| September | 7.01 °C | 21.12 °C | 19 mm |
| October | 0.57 °C | 12.54 °C | 12 mm |
| November | -7.51 °C | 2.71 °C | 1 mm |
| December | -15.55 °C | -6.14 °C | 0 mm |
| Annual | -1.4 °C | 10.6 °C | 242 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 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |