Thurlow, British Columbia climate data is summarized below. Average annual temperatures range from 40.9 °F (low) to 55.9 °F (high). Annual precipitation averages 67 Inches. Thurlow 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 | -18.1 °F | -15.5 °F | 5308.6 in. |
| February | -17.7 °F | -14.6 °F | 3886.2 in. |
| March | -17.2 °F | -13.5 °F | 4953 in. |
| April | -16.2 °F | -11.1 °F | 2717.8 in. |
| May | -14.1 °F | -8.2 °F | 1651 in. |
| June | -12.6 °F | -6.6 °F | 1371.6 in. |
| July | -11.1 °F | -4.4 °F | 965.2 in. |
| August | -11.1 °F | -4.2 °F | 1270 in. |
| September | -12.6 °F | -6.7 °F | 3175 in. |
| October | -14.6 °F | -10.4 °F | 5918.2 in. |
| November | -16.7 °F | -13.8 °F | 6781.8 in. |
| December | -18.2 °F | -15.7 °F | 5207 in. |
| Annual | 40.9 °F | 55.9 °F | 66.97 in. |
| 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 : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |