Cheney, Washington has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 1.3 °C (low) to 14.6 °C (high). Annual precipitation averages 464.8 Millimeters. 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 | -5.1 °C | 1.8 °C | 57.4 mm |
| February | -4.4 °C | 4.6 °C | 39.88 mm |
| March | -2.2 °C | 9.3 °C | 51.56 mm |
| April | 0.4 °C | 13.7 °C | 33.78 mm |
| May | 4.1 °C | 18.9 °C | 41.66 mm |
| June | 7.8 °C | 22.7 °C | 34.8 mm |
| July | 9.4 °C | 28.8 °C | 9.65 mm |
| August | 8.8 °C | 28.8 °C | 11.18 mm |
| September | 4.4 °C | 23.5 °C | 13.97 mm |
| October | 0.2 °C | 14.9 °C | 37.59 mm |
| November | -2.7 °C | 6.4 °C | 59.44 mm |
| December | -5.3 °C | 1.3 °C | 73.91 mm |
| Annual | 1.3 °C | 14.6 °C | 464.82 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |