Stettler, Alberta climate data is summarized below. Average annual temperatures range from 28.1 °F (low) to 47.8 °F (high). Annual precipitation averages 17.3 Inches. Stettler 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.3 °F | -21.5 °F | 0 in. |
| February | -26.1 °F | -20.8 °F | 0 in. |
| March | -22.6 °F | -17.1 °F | 0 in. |
| April | -19.1 °F | -12.7 °F | 914.4 in. |
| May | -15.5 °F | -8.2 °F | 1549.4 in. |
| June | -12.8 °F | -6.2 °F | 2692.4 in. |
| July | -11.4 °F | -4.4 °F | 2489.2 in. |
| August | -12.3 °F | -4.8 °F | 1574.8 in. |
| September | -14.9 °F | -7.2 °F | 1219.2 in. |
| October | -17.9 °F | -11.8 °F | 711.2 in. |
| November | -22.5 °F | -18 °F | 0 in. |
| December | -26.8 °F | -22.2 °F | 0 in. |
| Annual | 28.1 °F | 47.8 °F | 17.28 in. |
| 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 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |