Campbell River, British Columbia climate data is summarized below. Average annual temperatures range from 5.1 °C (low) to 13 °C (high). Annual precipitation averages 1510 Millimeters. Campbell River is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.43 °C | 4.43 °C | 193 mm |
| February | 0.22 °C | 6.13 °C | 136 mm |
| March | 1.11 °C | 8.06 °C | 179 mm |
| April | 3.06 °C | 11.84 °C | 99 mm |
| May | 7.2 °C | 16.79 °C | 66 mm |
| June | 10.23 °C | 19.32 °C | 50 mm |
| July | 12.64 °C | 23.52 °C | 41 mm |
| August | 12.45 °C | 23.29 °C | 49 mm |
| September | 9.1 °C | 18.55 °C | 105 mm |
| October | 5.22 °C | 12.29 °C | 208 mm |
| November | 1.19 °C | 7.29 °C | 218 mm |
| December | -0.9 °C | 4.14 °C | 166 mm |
| Annual | 5.1 °C | 13 °C | 1510 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |