Ruch, Oregon has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 4.3 °C (low) to 20 °C (high). Annual precipitation averages 652.5 Millimeters. Ruch is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.7 °C | 9.3 °C | 100.08 mm |
| February | -0.2 °C | 12.3 °C | 74.93 mm |
| March | 1 °C | 15 °C | 69.09 mm |
| April | 2.8 °C | 18.1 °C | 54.86 mm |
| May | 5.9 °C | 22.9 °C | 34.8 mm |
| June | 8.6 °C | 27.1 °C | 17.78 mm |
| July | 11.4 °C | 32.3 °C | 10.67 mm |
| August | 10.7 °C | 32.3 °C | 9.4 mm |
| September | 7.6 °C | 28.5 °C | 13.72 mm |
| October | 3.5 °C | 21.2 °C | 40.89 mm |
| November | 1.3 °C | 12.7 °C | 88.65 mm |
| December | -0.7 °C | 8.3 °C | 137.67 mm |
| Annual | 4.3 °C | 20 °C | 652.54 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |