Spirit River, Alberta climate data is summarized below. Average annual temperatures range from 27.9 °F (low) to 46 °F (high). Annual precipitation averages 15.7 Inches. Spirit River 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.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.8 °F | -21.6 °F | 0 in. |
| February | -25.1 °F | -20.6 °F | 0 in. |
| March | -23.6 °F | -18 °F | 0 in. |
| April | -18.8 °F | -13 °F | 787.4 in. |
| May | -15.6 °F | -8.3 °F | 1270 in. |
| June | -12.8 °F | -6.3 °F | 2387.6 in. |
| July | -11.7 °F | -4.7 °F | 1752.6 in. |
| August | -12.3 °F | -5.4 °F | 1676.4 in. |
| September | -14.7 °F | -8.1 °F | 1143 in. |
| October | -17.8 °F | -13.2 °F | 1092.2 in. |
| November | -22.9 °F | -19.2 °F | 0 in. |
| December | -27.3 °F | -23 °F | 0 in. |
| Annual | 27.9 °F | 46 °F | 15.67 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| 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 |