Sidney, British Columbia climate data is summarized below. Average annual temperatures range from 7 °C (low) to 13.9 °C (high). Annual precipitation averages 1414 Millimeters. Sidney is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.4 °C | 6.84 °C | 178 mm |
| February | 3.27 °C | 8.45 °C | 130 mm |
| March | 3.92 °C | 9.95 °C | 146 mm |
| April | 5.22 °C | 12.84 °C | 77 mm |
| May | 8.32 °C | 16.88 °C | 67 mm |
| June | 10.69 °C | 19.3 °C | 33 mm |
| July | 12.46 °C | 21.98 °C | 21 mm |
| August | 12.65 °C | 21.96 °C | 30 mm |
| September | 10.66 °C | 18.66 °C | 79 mm |
| October | 7.72 °C | 13.62 °C | 172 mm |
| November | 4.39 °C | 9.47 °C | 261 mm |
| December | 2.41 °C | 6.67 °C | 220 mm |
| Annual | 7 °C | 13.9 °C | 1414 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |