Chiloquin, Oregon has a Continental Subarctic - Cold Dry Summer climate (Köppen classification: Dsc). Average annual temperatures range from -0.7 °C (low) to 15.7 °C (high). Annual precipitation averages 431 Millimeters. Chiloquin is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.6 °C | 4.6 °C | 64.52 mm |
| February | -5.3 °C | 6.6 °C | 44.45 mm |
| March | -3.2 °C | 9.7 °C | 46.99 mm |
| April | -1.6 °C | 13.2 °C | 32 mm |
| May | 1.6 °C | 18.4 °C | 31.24 mm |
| June | 4 °C | 23.1 °C | 19.3 mm |
| July | 6.9 °C | 29 °C | 9.4 mm |
| August | 6 °C | 28.8 °C | 8.89 mm |
| September | 2.3 °C | 24.9 °C | 12.19 mm |
| October | -1.4 °C | 17.6 °C | 31.5 mm |
| November | -4 °C | 8.8 °C | 55.12 mm |
| December | -6.7 °C | 4.1 °C | 75.44 mm |
| Annual | -0.7 °C | 15.7 °C | 431.04 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsc - Continental Subarctic - Cold Dry Summer |