Ootsa Lake, British Columbia climate data is summarized below. Average annual temperatures range from -2.3 °C (low) to 7 °C (high). Annual precipitation averages 278 Millimeters. Ootsa Lake 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.07 °C | -3.54 °C | 0 mm |
| February | -11 °C | -1.83 °C | 0 mm |
| March | -10.12 °C | 0.7 °C | 0 mm |
| April | -4.66 °C | 4.98 °C | 27 mm |
| May | 1.69 °C | 12.75 °C | 37 mm |
| June | 5.12 °C | 15.45 °C | 52 mm |
| July | 7.93 °C | 18.95 °C | 41 mm |
| August | 7.29 °C | 18.99 °C | 32 mm |
| September | 3.81 °C | 14.05 °C | 33 mm |
| October | 0.01 °C | 6.98 °C | 49 mm |
| November | -5.39 °C | 0.08 °C | 7 mm |
| December | -10.48 °C | -4.11 °C | 0 mm |
| Annual | -2.3 °C | 7 °C | 278 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 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |