Tulsequah, British Columbia climate data is summarized below. Average annual temperatures range from -4.5 °C (low) to 1.4 °C (high). Annual precipitation averages 669 Millimeters. Tulsequah is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.02 °C | -6.39 °C | 14 mm |
| February | -12.55 °C | -5.81 °C | 0 mm |
| March | -13.08 °C | -5.62 °C | 0 mm |
| April | -7.31 °C | -0.45 °C | 16 mm |
| May | -1.32 °C | 5.53 °C | 41 mm |
| June | 2.56 °C | 9.91 °C | 47 mm |
| July | 5.09 °C | 11.5 °C | 59 mm |
| August | 5.25 °C | 11.15 °C | 99 mm |
| September | 1.88 °C | 6.33 °C | 189 mm |
| October | -1.81 °C | 1.36 °C | 152 mm |
| November | -9.03 °C | -4.65 °C | 35 mm |
| December | -12.21 °C | -6.55 °C | 17 mm |
| Annual | -4.5 °C | 1.4 °C | 669 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |