Penticton, British Columbia climate data is summarized below. Average annual temperatures range from 4 °C (low) to 16.2 °C (high). Annual precipitation averages 178 Millimeters. Penticton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.85 °C | 2.68 °C | 0 mm |
| February | -3.18 °C | 5.78 °C | 0 mm |
| March | -0.87 °C | 10.59 °C | 0 mm |
| April | 2.51 °C | 16.4 °C | 11 mm |
| May | 7.34 °C | 22.31 °C | 29 mm |
| June | 10.63 °C | 25.66 °C | 38 mm |
| July | 14.07 °C | 30.79 °C | 16 mm |
| August | 13.46 °C | 30.07 °C | 10 mm |
| September | 8.89 °C | 24.31 °C | 20 mm |
| October | 4.46 °C | 16 °C | 38 mm |
| November | -0.09 °C | 7.7 °C | 16 mm |
| December | -4.25 °C | 2.34 °C | 0 mm |
| Annual | 4 °C | 16.2 °C | 178 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |