Black Butte Ranch, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from -0.2 °C (low) to 15.7 °C (high). Annual precipitation averages 462.3 Millimeters. Black Butte Ranch is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around July 21 - July 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 5.8 °C | 72.64 mm |
| February | -4.7 °C | 7.3 °C | 54.1 mm |
| March | -3.3 °C | 10 °C | 35.31 mm |
| April | -1.8 °C | 13.2 °C | 33.78 mm |
| May | 1.4 °C | 18.1 °C | 28.96 mm |
| June | 3.9 °C | 22.4 °C | 21.59 mm |
| July | 6.6 °C | 28.7 °C | 9.14 mm |
| August | 6.4 °C | 28.4 °C | 11.43 mm |
| September | 3.2 °C | 24.1 °C | 13.21 mm |
| October | -0.5 °C | 16.3 °C | 34.8 mm |
| November | -3.1 °C | 8.8 °C | 58.67 mm |
| December | -5.7 °C | 4.8 °C | 88.65 mm |
| Annual | -0.2 °C | 15.7 °C | 462.28 mm |
| Average First Frost Date | July 21 - July 31 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |