Cheney, Washington has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 34.3 °F (low) to 58.2 °F (high). Annual precipitation averages 18.3 Inches. Cheney is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.9 °F | 35.2 °F | 2.26 in. |
| February | 24.0 °F | 40.2 °F | 1.57 in. |
| March | 28.1 °F | 48.8 °F | 2.03 in. |
| April | 32.8 °F | 56.7 °F | 1.33 in. |
| May | 39.3 °F | 66.1 °F | 1.64 in. |
| June | 46.1 °F | 72.8 °F | 1.37 in. |
| July | 48.9 °F | 83.8 °F | 0.38 in. |
| August | 47.9 °F | 83.8 °F | 0.44 in. |
| September | 40.0 °F | 74.3 °F | 0.55 in. |
| October | 32.3 °F | 58.9 °F | 1.48 in. |
| November | 27.1 °F | 43.6 °F | 2.34 in. |
| December | 22.4 °F | 34.3 °F | 2.91 in. |
| Annual | 34.3 °F | 58.2 °F | 18.3 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |