Penticton, British Columbia climate data is summarized below. Average annual temperatures range from 39.2 °F (low) to 61.2 °F (high). Annual precipitation averages 7 Inches. 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 | -20.5 °F | -16.3 °F | 0 in. |
| February | -19.5 °F | -14.6 °F | 0 in. |
| March | -18.3 °F | -11.9 °F | 0 in. |
| April | -16.4 °F | -8.7 °F | 279.4 in. |
| May | -13.7 °F | -5.4 °F | 736.6 in. |
| June | -11.9 °F | -3.5 °F | 965.2 in. |
| July | -10 °F | -0.7 °F | 406.4 in. |
| August | -10.3 °F | -1.1 °F | 254 in. |
| September | -12.8 °F | -4.3 °F | 508 in. |
| October | -15.3 °F | -8.9 °F | 965.2 in. |
| November | -17.8 °F | -13.5 °F | 406.4 in. |
| December | -20.1 °F | -16.5 °F | 0 in. |
| Annual | 39.2 °F | 61.2 °F | 7.01 in. |
| 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 : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |