Medford, Oregon has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 4.8 °C (low) to 19.9 °C (high). Annual precipitation averages 516.1 Millimeters. Medford 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 | -0.2 °C | 9.1 °C | 73.15 mm |
| February | 0.3 °C | 12.3 °C | 53.85 mm |
| March | 1.6 °C | 15.1 °C | 51.05 mm |
| April | 3.4 °C | 17.9 °C | 45.72 mm |
| May | 6.4 °C | 22.8 °C | 34.29 mm |
| June | 9.1 °C | 26.9 °C | 20.07 mm |
| July | 12.1 °C | 32.3 °C | 7.87 mm |
| August | 11.4 °C | 32.3 °C | 10.92 mm |
| September | 8.1 °C | 28.6 °C | 13.72 mm |
| October | 3.8 °C | 20.9 °C | 34.8 mm |
| November | 1.7 °C | 12.5 °C | 72.14 mm |
| December | -0.2 °C | 8.1 °C | 98.55 mm |
| Annual | 4.8 °C | 19.9 °C | 516.13 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 | Csa - Hot-Summer Mediterranean Climate |