Enterprise, Oregon has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.1 °C (low) to 14.4 °C (high). Annual precipitation averages 373.1 Millimeters. Enterprise is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Aug. 1 - Aug. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.1 °C | 1.7 °C | 27.43 mm |
| February | -6.9 °C | 5.1 °C | 22.35 mm |
| March | -4.1 °C | 9.5 °C | 31.24 mm |
| April | -1.7 °C | 13.1 °C | 42.16 mm |
| May | 1.9 °C | 18 °C | 59.44 mm |
| June | 4.6 °C | 21.8 °C | 48.51 mm |
| July | 7 °C | 28.1 °C | 15.75 mm |
| August | 6.6 °C | 28.4 °C | 21.08 mm |
| September | 2.7 °C | 23.3 °C | 17.02 mm |
| October | -1.4 °C | 15.6 °C | 26.67 mm |
| November | -5.2 °C | 7.1 °C | 31.75 mm |
| December | -8.2 °C | 1.6 °C | 29.72 mm |
| Annual | -1.1 °C | 14.4 °C | 373.12 mm |
| Average First Frost Date | Aug. 1 - Aug. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |