White Rock, British Columbia climate data is summarized below. Average annual temperatures range from 44 °F (low) to 56.6 °F (high). Annual precipitation averages 31.2 Inches. White Rock 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.3 °F | -14.5 °F | 2616.2 in. |
| February | -16.5 °F | -13.2 °F | 1752.6 in. |
| March | -15.8 °F | -12.2 °F | 2387.6 in. |
| April | -14.8 °F | -10.5 °F | 1244.6 in. |
| May | -13.1 °F | -8.5 °F | 1143 in. |
| June | -11.7 °F | -7.4 °F | 812.8 in. |
| July | -10.7 °F | -5.6 °F | 431.8 in. |
| August | -10.5 °F | -5.6 °F | 482.6 in. |
| September | -11.9 °F | -7.2 °F | 1219.2 in. |
| October | -13.7 °F | -10.1 °F | 2819.4 in. |
| November | -15.7 °F | -12.7 °F | 3022.6 in. |
| December | -17.2 °F | -14.6 °F | 2184.4 in. |
| Annual | 44 °F | 56.6 °F | 31.2 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |