Wynyard, Saskatchewan climate data is summarized below. Average annual temperatures range from 26.8 °F (low) to 44.7 °F (high). Annual precipitation averages 18.5 Inches. Wynyard is located in USDA Plant Hardiness Zone 3a. 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 | -28.5 °F | -23.4 °F | 0 in. |
| February | -28.7 °F | -23.3 °F | 0 in. |
| March | -24.1 °F | -18.9 °F | 0 in. |
| April | -19.3 °F | -13.6 °F | 736.6 in. |
| May | -15.6 °F | -8.8 °F | 1270 in. |
| June | -12.3 °F | -6.4 °F | 3149.6 in. |
| July | -10.7 °F | -5 °F | 2895.6 in. |
| August | -11.5 °F | -5.3 °F | 1676.4 in. |
| September | -14.2 °F | -7.7 °F | 1295.4 in. |
| October | -17.5 °F | -12.5 °F | 889 in. |
| November | -22.4 °F | -18.2 °F | 0 in. |
| December | -27.9 °F | -23.4 °F | 0 in. |
| Annual | 26.8 °F | 44.7 °F | 18.47 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 3a : -40°F to -35°F |
| Current Drought Conditions | Normal |