Outlook, Washington has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 3.7 °C (low) to 17.7 °C (high). Annual precipitation averages 190.3 Millimeters. Outlook is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.3 °C | 4.2 °C | 25.4 mm |
| February | -2.6 °C | 8.4 °C | 17.78 mm |
| March | -0.1 °C | 13.6 °C | 14.73 mm |
| April | 2.6 °C | 17.8 °C | 13.72 mm |
| May | 6.9 °C | 22.9 °C | 19.05 mm |
| June | 10.1 °C | 26.4 °C | 16.26 mm |
| July | 12.8 °C | 31.5 °C | 5.33 mm |
| August | 12.1 °C | 30.8 °C | 5.08 mm |
| September | 8.1 °C | 25.8 °C | 5.59 mm |
| October | 3 °C | 18 °C | 19.3 mm |
| November | -1.2 °C | 9.7 °C | 22.61 mm |
| December | -3.7 °C | 3.7 °C | 25.4 mm |
| Annual | 3.7 °C | 17.7 °C | 190.25 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |