Eugene, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 5.6 °C (low) to 17.6 °C (high). Annual precipitation averages 1014.5 Millimeters. Eugene 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.6 °C | 8.8 °C | 131.83 mm |
| February | 1.7 °C | 10.8 °C | 114.55 mm |
| March | 2.7 °C | 13.4 °C | 118.11 mm |
| April | 4.3 °C | 15.8 °C | 91.44 mm |
| May | 6.7 °C | 19.6 °C | 70.61 mm |
| June | 8.9 °C | 22.9 °C | 36.07 mm |
| July | 11 °C | 28.2 °C | 8.38 mm |
| August | 10.9 °C | 28.6 °C | 9.65 mm |
| September | 8.8 °C | 25.3 °C | 36.83 mm |
| October | 5.7 °C | 18.1 °C | 84.84 mm |
| November | 3.3 °C | 11.7 °C | 146.05 mm |
| December | 1.4 °C | 8.2 °C | 166.12 mm |
| Annual | 5.6 °C | 17.6 °C | 1014.48 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 |