Wawa, Ontario climate data is summarized below. Average annual temperatures range from -2.8 °C (low) to 7.3 °C (high). Annual precipitation averages 621 Millimeters. Wawa is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.1 °C | -7.82 °C | 0 mm |
| February | -19.51 °C | -7.5 °C | 0 mm |
| March | -12.79 °C | -0.34 °C | 0 mm |
| April | -4.88 °C | 6.07 °C | 34 mm |
| May | 2.78 °C | 13.86 °C | 84 mm |
| June | 8.36 °C | 19.15 °C | 91 mm |
| July | 10.83 °C | 20.11 °C | 112 mm |
| August | 11.46 °C | 20.41 °C | 68 mm |
| September | 7.17 °C | 16.38 °C | 101 mm |
| October | 1.9 °C | 9.71 °C | 97 mm |
| November | -4.8 °C | 2.8 °C | 34 mm |
| December | -14.83 °C | -4.89 °C | 0 mm |
| Annual | -2.8 °C | 7.3 °C | 621 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |