Allan, Saskatchewan climate data is summarized below. Average annual temperatures range from -2.5 °C (low) to 8.1 °C (high). Annual precipitation averages 461 Millimeters. Allan is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.11 °C | -8.82 °C | 0 mm |
| February | -18.83 °C | -8.93 °C | 0 mm |
| March | -10.7 °C | -1.26 °C | 0 mm |
| April | -2.32 °C | 8.68 °C | 23 mm |
| May | 4.45 °C | 17.77 °C | 61 mm |
| June | 10.27 °C | 21.63 °C | 127 mm |
| July | 12.89 °C | 24.36 °C | 104 mm |
| August | 11.13 °C | 23.54 °C | 63 mm |
| September | 6.28 °C | 19.3 °C | 46 mm |
| October | 0.13 °C | 10.26 °C | 37 mm |
| November | -8.37 °C | -0.14 °C | 0 mm |
| December | -17.29 °C | -9.48 °C | 0 mm |
| Annual | -2.5 °C | 8.1 °C | 461 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |