Gearhart, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 45 °F (low) to 58.5 °F (high). Annual precipitation averages 77.6 Inches. Gearhart is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.0 °F | 49.6 °F | 11.19 in. |
| February | 38.5 °F | 51.3 °F | 8.65 in. |
| March | 40.0 °F | 53.6 °F | 8.82 in. |
| April | 41.6 °F | 56.7 °F | 6.8 in. |
| May | 46.4 °F | 60.2 °F | 3.82 in. |
| June | 49.6 °F | 63.4 °F | 2.77 in. |
| July | 53.4 °F | 67.0 °F | 0.93 in. |
| August | 53.2 °F | 68.0 °F | 1.33 in. |
| September | 51.2 °F | 67.5 °F | 2.78 in. |
| October | 46.3 °F | 61.4 °F | 6.97 in. |
| November | 42.5 °F | 54.0 °F | 11.59 in. |
| December | 38.3 °F | 49.4 °F | 11.98 in. |
| Annual | 45 °F | 58.5 °F | 77.63 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |