Stanfield, Oregon has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 5.1 °C (low) to 18.4 °C (high). Annual precipitation averages 248.4 Millimeters. Stanfield is located in USDA Plant Hardiness Zone 7a. 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 °C | 5.6 °C | 32.51 mm |
| February | -1.4 °C | 8.9 °C | 25.65 mm |
| March | 0.9 °C | 14.1 °C | 24.64 mm |
| April | 3.8 °C | 18.1 °C | 21.34 mm |
| May | 7.8 °C | 23.1 °C | 24.64 mm |
| June | 11.2 °C | 26.8 °C | 17.27 mm |
| July | 14.4 °C | 32.2 °C | 4.32 mm |
| August | 13.9 °C | 31.8 °C | 5.08 mm |
| September | 9.6 °C | 26.7 °C | 8.38 mm |
| October | 4.3 °C | 18.5 °C | 20.83 mm |
| November | 0.3 °C | 10.3 °C | 29.46 mm |
| December | -2.2 °C | 5.2 °C | 34.29 mm |
| Annual | 5.1 °C | 18.4 °C | 248.41 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |