New Hope, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 41.8 °F (low) to 68.4 °F (high). Annual precipitation averages 33.4 Inches. New Hope is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.4 °F | 48.6 °F | 5.89 in. |
| February | 34.2 °F | 54.4 °F | 4.18 in. |
| March | 35.9 °F | 59.6 °F | 3.89 in. |
| April | 39.0 °F | 65.2 °F | 2.47 in. |
| May | 44.2 °F | 74.2 °F | 1.47 in. |
| June | 49.1 °F | 81.5 °F | 0.66 in. |
| July | 54.2 °F | 90.8 °F | 0.39 in. |
| August | 53.0 °F | 90.9 °F | 0.23 in. |
| September | 47.1 °F | 84.1 °F | 0.59 in. |
| October | 40.4 °F | 70.1 °F | 2.07 in. |
| November | 37.1 °F | 54.7 °F | 4.77 in. |
| December | 33.5 °F | 46.6 °F | 6.74 in. |
| Annual | 41.8 °F | 68.4 °F | 33.35 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |