Houston, British Columbia climate data is summarized below. Average annual temperatures range from 29.3 °F (low) to 44.3 °F (high). Annual precipitation averages 13.5 Inches. Houston 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.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.3 °F | -19.4 °F | 0 in. |
| February | -23.2 °F | -18.8 °F | 0 in. |
| March | -22.5 °F | -17.3 °F | 0 in. |
| April | -19.8 °F | -15 °F | 762 in. |
| May | -16.6 °F | -11 °F | 1041.4 in. |
| June | -14.6 °F | -9.3 °F | 1422.4 in. |
| July | -13.1 °F | -7.4 °F | 1346.2 in. |
| August | -13.5 °F | -7.4 °F | 1041.4 in. |
| September | -15.4 °F | -10.2 °F | 1244.6 in. |
| October | -17.5 °F | -14.2 °F | 1701.8 in. |
| November | -20.6 °F | -17.9 °F | 177.8 in. |
| December | -23.4 °F | -20.1 °F | 0 in. |
| Annual | 29.3 °F | 44.3 °F | 13.54 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| 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 |