Calmar, Alberta climate data is summarized below. Average annual temperatures range from 28.4 °F (low) to 47.8 °F (high). Annual precipitation averages 17.7 Inches. Calmar is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.5 °F | -21 °F | 0 in. |
| February | -25.1 °F | -20.1 °F | 0 in. |
| March | -22.7 °F | -17.3 °F | 0 in. |
| April | -19.1 °F | -12.9 °F | 838.2 in. |
| May | -15.8 °F | -8.3 °F | 1879.6 in. |
| June | -13.1 °F | -6.3 °F | 2336.8 in. |
| July | -11.7 °F | -4.8 °F | 2921 in. |
| August | -12.6 °F | -5.1 °F | 1625.6 in. |
| September | -15.1 °F | -7.3 °F | 1041.4 in. |
| October | -17.8 °F | -11.9 °F | 762 in. |
| November | -22 °F | -18 °F | 0 in. |
| December | -26.3 °F | -21.9 °F | 0 in. |
| Annual | 28.4 °F | 47.8 °F | 17.67 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |