Wenatchee, Washington has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 41.3 °F (low) to 63.2 °F (high). Annual precipitation averages 9.1 Inches. Wenatchee is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.5 °F | 36.3 °F | 1.34 in. |
| February | 27.7 °F | 44.1 °F | 0.93 in. |
| March | 33.1 °F | 54.7 °F | 0.78 in. |
| April | 39.7 °F | 64.4 °F | 0.59 in. |
| May | 47.6 °F | 73.5 °F | 0.77 in. |
| June | 54.1 °F | 80.3 °F | 0.55 in. |
| July | 60.2 °F | 89.6 °F | 0.27 in. |
| August | 59.3 °F | 89.0 °F | 0.16 in. |
| September | 50.8 °F | 79.6 °F | 0.26 in. |
| October | 40.2 °F | 64.0 °F | 0.72 in. |
| November | 31.5 °F | 47.2 °F | 1.1 in. |
| December | 25.8 °F | 36.1 °F | 1.58 in. |
| Annual | 41.3 °F | 63.2 °F | 9.05 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |