Newport, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 45 °F (low) to 57.6 °F (high). Annual precipitation averages 68.6 Inches. Newport is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.5 °F | 51.6 °F | 10.48 in. |
| February | 39.6 °F | 52.6 °F | 7.66 in. |
| March | 40.3 °F | 53.4 °F | 7.75 in. |
| April | 42.2 °F | 55.3 °F | 5.55 in. |
| May | 46.0 °F | 58.6 °F | 3.46 in. |
| June | 49.2 °F | 61.2 °F | 2.53 in. |
| July | 51.4 °F | 63.6 °F | 0.6 in. |
| August | 51.2 °F | 64.7 °F | 1.15 in. |
| September | 49.8 °F | 64.5 °F | 2.02 in. |
| October | 46.7 °F | 60.7 °F | 5.4 in. |
| November | 43.1 °F | 54.8 °F | 10.26 in. |
| December | 40.0 °F | 50.5 °F | 11.73 in. |
| Annual | 45 °F | 57.6 °F | 68.59 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |