Tulsequah, British Columbia climate data is summarized below. Average annual temperatures range from 23.8 °F (low) to 34.4 °F (high). Annual precipitation averages 26.3 Inches. 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 | -24.5 °F | -21.3 °F | 355.6 in. |
| February | -24.8 °F | -21 °F | 0 in. |
| March | -25 °F | -20.9 °F | 0 in. |
| April | -21.8 °F | -18 °F | 406.4 in. |
| May | -18.5 °F | -14.7 °F | 1041.4 in. |
| June | -16.4 °F | -12.3 °F | 1193.8 in. |
| July | -15 °F | -11.4 °F | 1498.6 in. |
| August | -14.9 °F | -11.6 °F | 2514.6 in. |
| September | -16.7 °F | -14.3 °F | 4800.6 in. |
| October | -18.8 °F | -17 °F | 3860.8 in. |
| November | -22.8 °F | -20.4 °F | 889 in. |
| December | -24.6 °F | -21.4 °F | 431.8 in. |
| Annual | 23.8 °F | 34.4 °F | 26.33 in. |
| 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 : -20°F to -15°F |
| Current Drought Conditions | Normal |