Punchaw, British Columbia climate data is summarized below. Average annual temperatures range from 29.6 °F (low) to 47.9 °F (high). Annual precipitation averages 15.2 Inches. Punchaw is located in USDA Plant Hardiness Zone 4b. 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 | -23.7 °F | -19.6 °F | 0 in. |
| February | -23.1 °F | -18.3 °F | 254 in. |
| March | -21.7 °F | -16.1 °F | 381 in. |
| April | -19.2 °F | -13.1 °F | 863.6 in. |
| May | -16.4 °F | -9.4 °F | 1143 in. |
| June | -14.1 °F | -7.6 °F | 1371.6 in. |
| July | -12.9 °F | -5.6 °F | 1066.8 in. |
| August | -13.4 °F | -5.7 °F | 838.2 in. |
| September | -15.5 °F | -8.8 °F | 1219.2 in. |
| October | -17.5 °F | -13 °F | 1651 in. |
| November | -20.8 °F | -17.4 °F | 1041.4 in. |
| December | -23.8 °F | -19.9 °F | 0 in. |
| Annual | 29.6 °F | 47.9 °F | 15.23 in. |
| 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 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |