Scotts Mills, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 6.5 °C (low) to 16.9 °C (high). Annual precipitation averages 1196.3 Millimeters. Scotts Mills is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.8 °C | 8.3 °C | 169.93 mm |
| February | 2 °C | 10.3 °C | 123.44 mm |
| March | 3.3 °C | 12.8 °C | 131.83 mm |
| April | 5.1 °C | 15.4 °C | 113.79 mm |
| May | 7.9 °C | 19.2 °C | 81.03 mm |
| June | 10.3 °C | 22.2 °C | 53.59 mm |
| July | 12.5 °C | 26.8 °C | 12.19 mm |
| August | 12.4 °C | 27.3 °C | 14.22 mm |
| September | 10.4 °C | 24.1 °C | 43.18 mm |
| October | 6.9 °C | 17.3 °C | 107.44 mm |
| November | 3.9 °C | 11.2 °C | 171.7 mm |
| December | 1.6 °C | 7.8 °C | 173.99 mm |
| Annual | 6.5 °C | 16.9 °C | 1196.33 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |