Bend, Oregon has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 0.8 °C (low) to 15.9 °C (high). Annual precipitation averages 297.7 Millimeters. Bend is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.2 °C | 5.7 °C | 43.43 mm |
| February | -4.2 °C | 7.3 °C | 31.5 mm |
| March | -2.7 °C | 10.7 °C | 22.61 mm |
| April | -1.2 °C | 13.7 °C | 20.32 mm |
| May | 2.2 °C | 18.5 °C | 27.18 mm |
| June | 4.9 °C | 22.7 °C | 20.32 mm |
| July | 8.4 °C | 28.6 °C | 10.92 mm |
| August | 8.2 °C | 28.4 °C | 9.91 mm |
| September | 4.6 °C | 24.1 °C | 9.4 mm |
| October | 0.5 °C | 16.8 °C | 19.3 mm |
| November | -2.5 °C | 9.1 °C | 30.23 mm |
| December | -5 °C | 4.7 °C | 52.58 mm |
| Annual | 0.8 °C | 15.9 °C | 297.7 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| 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 | Extreme Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |