Pacific Beach, Washington has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 44.1 °F (low) to 57 °F (high). Annual precipitation averages 92.1 Inches. Pacific Beach 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 | 38.1 °F | 48.1 °F | 14.09 in. |
| February | 37.4 °F | 49.9 °F | 8.68 in. |
| March | 38.9 °F | 52.1 °F | 10.81 in. |
| April | 41.3 °F | 55.1 °F | 7.4 in. |
| May | 45.8 °F | 59.1 °F | 3.89 in. |
| June | 49.7 °F | 62.3 °F | 3.3 in. |
| July | 52.6 °F | 65.2 °F | 1.4 in. |
| August | 52.7 °F | 66.7 °F | 2.08 in. |
| September | 50.1 °F | 66.0 °F | 3.16 in. |
| October | 45.2 °F | 59.6 °F | 9.0 in. |
| November | 40.5 °F | 52.5 °F | 14.25 in. |
| December | 37.4 °F | 47.7 °F | 14.0 in. |
| Annual | 44.1 °F | 57 °F | 92.06 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 30-40 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 | Abnormally Dry |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |