Vantage, Washington has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 5.6 °C (low) to 18.3 °C (high). Annual precipitation averages 199.9 Millimeters. Vantage 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 | -2.9 °C | 4 °C | 27.94 mm |
| February | -1.2 °C | 8.1 °C | 18.8 mm |
| March | 1.4 °C | 13.7 °C | 19.05 mm |
| April | 4.5 °C | 18.4 °C | 14.73 mm |
| May | 8.9 °C | 23.7 °C | 16.51 mm |
| June | 12.4 °C | 27.4 °C | 14.99 mm |
| July | 15.8 °C | 32.6 °C | 6.86 mm |
| August | 15.3 °C | 32 °C | 3.3 mm |
| September | 10.8 °C | 26.9 °C | 5.08 mm |
| October | 5.1 °C | 18.7 °C | 16.26 mm |
| November | 0.3 °C | 9.7 °C | 23.37 mm |
| December | -2.8 °C | 3.9 °C | 33.02 mm |
| Annual | 5.6 °C | 18.3 °C | 199.91 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 | BWk - Cold Desert Climate |