Ashland, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 3.7 °C (low) to 19.2 °C (high). Annual precipitation averages 553 Millimeters. Ashland is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.4 °C | 8.9 °C | 70.1 mm |
| February | -0.9 °C | 11.6 °C | 56.64 mm |
| March | 0.3 °C | 14.2 °C | 57.66 mm |
| April | 2.2 °C | 16.9 °C | 53.34 mm |
| May | 5.4 °C | 21.8 °C | 44.2 mm |
| June | 8.1 °C | 25.9 °C | 24.89 mm |
| July | 11.1 °C | 31.3 °C | 16.76 mm |
| August | 10.5 °C | 31.2 °C | 6.86 mm |
| September | 7.2 °C | 27.5 °C | 15.75 mm |
| October | 2.9 °C | 20.1 °C | 37.85 mm |
| November | 0.5 °C | 12.4 °C | 73.41 mm |
| December | -1.5 °C | 8.1 °C | 95.5 mm |
| Annual | 3.7 °C | 19.2 °C | 552.96 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 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 | Moderate Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |