Claresholm, Alberta climate data is summarized below. Average annual temperatures range from -0.8 °C (low) to 11.5 °C (high). Annual precipitation averages 337 Millimeters. Claresholm 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 | -10.96 °C | -0.3 °C | 0 mm |
| February | -9.84 °C | 1.2 °C | 0 mm |
| March | -5.35 °C | 5.79 °C | 0 mm |
| April | -1.61 °C | 10.8 °C | 27 mm |
| May | 3.45 °C | 16.33 °C | 63 mm |
| June | 7.74 °C | 20.24 °C | 97 mm |
| July | 10.66 °C | 24.63 °C | 49 mm |
| August | 9.25 °C | 24.16 °C | 32 mm |
| September | 4.93 °C | 19.81 °C | 37 mm |
| October | 0.05 °C | 12.75 °C | 32 mm |
| November | -6.04 °C | 4.7 °C | 0 mm |
| December | -12.41 °C | -1.59 °C | 0 mm |
| Annual | -0.8 °C | 11.5 °C | 337 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 | Moderate Drought |