Wistaria, British Columbia climate data is summarized below. Average annual temperatures range from -1.9 °C (low) to 6.8 °C (high). Annual precipitation averages 292 Millimeters. Wistaria 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 | -10.27 °C | -3.17 °C | 0 mm |
| February | -10.25 °C | -1.69 °C | 0 mm |
| March | -9.16 °C | 0.69 °C | 0 mm |
| April | -4.38 °C | 4.54 °C | 27 mm |
| May | 1.72 °C | 12.24 °C | 38 mm |
| June | 5.17 °C | 15.07 °C | 51 mm |
| July | 7.99 °C | 18.57 °C | 40 mm |
| August | 7.49 °C | 18.68 °C | 36 mm |
| September | 3.99 °C | 13.85 °C | 35 mm |
| October | 0.14 °C | 6.83 °C | 56 mm |
| November | -5.16 °C | 0.09 °C | 9 mm |
| December | -9.94 °C | -3.84 °C | 0 mm |
| Annual | -1.9 °C | 6.8 °C | 292 mm |
| 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 : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |