Marilla, British Columbia climate data is summarized below. Average annual temperatures range from -2.7 °C (low) to 7 °C (high). Annual precipitation averages 293 Millimeters. Marilla is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.78 °C | -3.8 °C | 0 mm |
| February | -11.5 °C | -1.76 °C | 0 mm |
| March | -10.74 °C | 0.59 °C | 0 mm |
| April | -5.36 °C | 5 °C | 24 mm |
| May | 1.29 °C | 12.87 °C | 40 mm |
| June | 4.76 °C | 15.5 °C | 54 mm |
| July | 7.62 °C | 18.99 °C | 44 mm |
| August | 6.79 °C | 19.07 °C | 35 mm |
| September | 3.46 °C | 14.19 °C | 35 mm |
| October | -0.21 °C | 7.11 °C | 50 mm |
| November | -5.85 °C | -0.01 °C | 11 mm |
| December | -10.94 °C | -4.27 °C | 0 mm |
| Annual | -2.7 °C | 7 °C | 293 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |