Pilot Rock, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 3.7 °C (low) to 17.9 °C (high). Annual precipitation averages 378.7 Millimeters. Pilot Rock is located in USDA Plant Hardiness Zone 7a. 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 | -2.8 °C | 5.9 °C | 36.83 mm |
| February | -2.1 °C | 8.6 °C | 31.24 mm |
| March | 0.2 °C | 13.1 °C | 42.16 mm |
| April | 2.6 °C | 16.7 °C | 41.4 mm |
| May | 6.2 °C | 21.6 °C | 52.32 mm |
| June | 9.3 °C | 25.7 °C | 34.8 mm |
| July | 12.2 °C | 31.6 °C | 7.37 mm |
| August | 11.7 °C | 31.3 °C | 10.67 mm |
| September | 7.7 °C | 26.1 °C | 16.51 mm |
| October | 3 °C | 18.3 °C | 27.18 mm |
| November | -0.6 °C | 10.4 °C | 38.61 mm |
| December | -3.1 °C | 5.5 °C | 39.62 mm |
| Annual | 3.7 °C | 17.9 °C | 378.71 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 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |