Redwood, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 5.8 °C (low) to 19.9 °C (high). Annual precipitation averages 842.8 Millimeters. Redwood is located in USDA Plant Hardiness Zone 8b. 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 | 1.2 °C | 9 °C | 146.05 mm |
| February | 1.5 °C | 12.3 °C | 102.36 mm |
| March | 2.4 °C | 15.2 °C | 103.38 mm |
| April | 4.2 °C | 18.4 °C | 59.94 mm |
| May | 7.1 °C | 23.2 °C | 34.8 mm |
| June | 9.8 °C | 27.1 °C | 17.02 mm |
| July | 12.8 °C | 32.1 °C | 8.64 mm |
| August | 12.1 °C | 32.2 °C | 5.84 mm |
| September | 8.7 °C | 28.6 °C | 14.99 mm |
| October | 5 °C | 20.7 °C | 55.63 mm |
| November | 3.3 °C | 12.5 °C | 117.35 mm |
| December | 1.3 °C | 7.7 °C | 176.78 mm |
| Annual | 5.8 °C | 19.9 °C | 842.78 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |