Chiloquin, Oregon has a Continental Subarctic - Cold Dry Summer climate (Köppen classification: Dsc). Average annual temperatures range from 30.8 °F (low) to 60.3 °F (high). Annual precipitation averages 17 Inches. 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 | 20.2 °F | 40.2 °F | 2.54 in. |
| February | 22.5 °F | 43.9 °F | 1.75 in. |
| March | 26.2 °F | 49.5 °F | 1.85 in. |
| April | 29.2 °F | 55.7 °F | 1.26 in. |
| May | 34.8 °F | 65.1 °F | 1.23 in. |
| June | 39.2 °F | 73.6 °F | 0.76 in. |
| July | 44.5 °F | 84.2 °F | 0.37 in. |
| August | 42.8 °F | 83.9 °F | 0.35 in. |
| September | 36.2 °F | 76.9 °F | 0.48 in. |
| October | 29.4 °F | 63.7 °F | 1.24 in. |
| November | 24.8 °F | 47.8 °F | 2.17 in. |
| December | 19.9 °F | 39.3 °F | 2.97 in. |
| Annual | 30.8 °F | 60.3 °F | 16.97 in. |
| 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 : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsc - Continental Subarctic - Cold Dry Summer |