East Wenatchee, Washington has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 5.2 °C (low) to 17.2 °C (high). Annual precipitation averages 240.3 Millimeters. East 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 | -3.7 °C | 2.3 °C | 35.81 mm |
| February | -2.3 °C | 6.6 °C | 24.89 mm |
| March | 0.7 °C | 12.4 °C | 21.59 mm |
| April | 4.2 °C | 17.8 °C | 16 mm |
| May | 8.6 °C | 22.9 °C | 21.08 mm |
| June | 12.2 °C | 26.6 °C | 13.97 mm |
| July | 15.7 °C | 31.8 °C | 6.86 mm |
| August | 15.2 °C | 31.4 °C | 5.08 mm |
| September | 10.6 °C | 26.3 °C | 6.86 mm |
| October | 4.6 °C | 17.6 °C | 19.3 mm |
| November | -0.2 °C | 8.3 °C | 28.19 mm |
| December | -3.4 °C | 2.3 °C | 40.64 mm |
| Annual | 5.2 °C | 17.2 °C | 240.27 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |