Houston, British Columbia climate data is summarized below. Average annual temperatures range from -1.5 °C (low) to 6.8 °C (high). Annual precipitation averages 344 Millimeters. 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 | -9.98 °C | -2.91 °C | 0 mm |
| February | -9.78 °C | -1.79 °C | 0 mm |
| March | -8.57 °C | 0.78 °C | 0 mm |
| April | -3.6 °C | 5.04 °C | 30 mm |
| May | 2.19 °C | 12.25 °C | 41 mm |
| June | 5.64 °C | 15.29 °C | 56 mm |
| July | 8.46 °C | 18.77 °C | 53 mm |
| August | 7.75 °C | 18.67 °C | 41 mm |
| September | 4.29 °C | 13.59 °C | 49 mm |
| October | 0.42 °C | 6.5 °C | 67 mm |
| November | -4.99 °C | -0.19 °C | 7 mm |
| December | -10.17 °C | -4.14 °C | 0 mm |
| Annual | -1.5 °C | 6.8 °C | 344 mm |
| 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 : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |