Fontas, British Columbia climate data is summarized below. Average annual temperatures range from -4.2 °C (low) to 5.3 °C (high). Annual precipitation averages 347 Millimeters. Fontas is located in USDA Plant Hardiness Zone 3a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.76 °C | -11.17 °C | 0 mm |
| February | -17.76 °C | -8.11 °C | 0 mm |
| March | -14.34 °C | -5.37 °C | 0 mm |
| April | -3.23 °C | 5.14 °C | 19 mm |
| May | 2.89 °C | 15.11 °C | 51 mm |
| June | 7.88 °C | 20.53 °C | 68 mm |
| July | 10.36 °C | 22.38 °C | 96 mm |
| August | 8.55 °C | 20.51 °C | 52 mm |
| September | 4.55 °C | 14.01 °C | 39 mm |
| October | -0.68 °C | 6.02 °C | 22 mm |
| November | -11.39 °C | -5.21 °C | 0 mm |
| December | -18.02 °C | -10.43 °C | 0 mm |
| Annual | -4.2 °C | 5.3 °C | 347 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Normal |