Isle Pierre, British Columbia climate data is summarized below. Average annual temperatures range from 29.2 °F (low) to 44.9 °F (high). Annual precipitation averages 18.9 Inches. Isle Pierre is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.5 °F | -20 °F | 0 in. |
| February | -23 °F | -19.1 °F | 0 in. |
| March | -21.9 °F | -17.2 °F | 0 in. |
| April | -19.3 °F | -14.2 °F | 1016 in. |
| May | -16.6 °F | -10.4 °F | 1752.6 in. |
| June | -14.4 °F | -8.7 °F | 1879.6 in. |
| July | -13 °F | -6.7 °F | 1498.6 in. |
| August | -13.4 °F | -6.9 °F | 1346.2 in. |
| September | -15.7 °F | -9.9 °F | 1727.2 in. |
| October | -17.9 °F | -14 °F | 2209.8 in. |
| November | -21.2 °F | -18.2 °F | 736.6 in. |
| December | -24 °F | -20.4 °F | 0 in. |
| Annual | 29.2 °F | 44.9 °F | 18.86 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |