Hood River, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 5.7 °C (low) to 17 °C (high). Annual precipitation averages 851.7 Millimeters. Hood River is located in USDA Plant Hardiness Zone 8a. 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 | 0.1 °C | 5.8 °C | 140.21 mm |
| February | 0.4 °C | 8.9 °C | 98.81 mm |
| March | 2.1 °C | 12.7 °C | 93.98 mm |
| April | 4.5 °C | 16.3 °C | 54.86 mm |
| May | 7.7 °C | 20.7 °C | 37.85 mm |
| June | 10.6 °C | 23.8 °C | 22.1 mm |
| July | 13.2 °C | 28.2 °C | 3.56 mm |
| August | 12.9 °C | 28.6 °C | 8.13 mm |
| September | 9.3 °C | 24.9 °C | 16.51 mm |
| October | 5.3 °C | 17.8 °C | 70.61 mm |
| November | 2.3 °C | 10.2 °C | 137.41 mm |
| December | 0.2 °C | 5.7 °C | 167.64 mm |
| Annual | 5.7 °C | 17 °C | 851.67 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |