High River, Alberta climate data is summarized below. Average annual temperatures range from 29.6 °F (low) to 51.5 °F (high). Annual precipitation averages 15.5 Inches. High River 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 | -24.3 °F | -18.6 °F | 0 in. |
| February | -23.8 °F | -17.9 °F | 0 in. |
| March | -21.3 °F | -15.1 °F | 0 in. |
| April | -19 °F | -12.1 °F | 762 in. |
| May | -16.1 °F | -8.8 °F | 2032 in. |
| June | -13.6 °F | -6.7 °F | 2667 in. |
| July | -11.8 °F | -4.3 °F | 1549.4 in. |
| August | -12.6 °F | -4.6 °F | 1092.2 in. |
| September | -15.2 °F | -6.9 °F | 1041.4 in. |
| October | -18 °F | -10.9 °F | 838.2 in. |
| November | -21.5 °F | -15.8 °F | 0 in. |
| December | -25.2 °F | -19.5 °F | 0 in. |
| Annual | 29.6 °F | 51.5 °F | 15.46 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 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |