Rocky Point, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 44.5 °F (low) to 60.4 °F (high). Annual precipitation averages 50.4 Inches. Rocky Point 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.3 °F | 47.4 °F | 8.06 in. |
| February | 36.1 °F | 49.8 °F | 4.74 in. |
| March | 38.5 °F | 54.0 °F | 5.43 in. |
| April | 41.7 °F | 58.9 °F | 3.3 in. |
| May | 47.1 °F | 65.0 °F | 2.11 in. |
| June | 51.5 °F | 68.8 °F | 1.54 in. |
| July | 54.9 °F | 75.4 °F | 0.82 in. |
| August | 55.1 °F | 76.3 °F | 1.02 in. |
| September | 51.4 °F | 70.9 °F | 1.9 in. |
| October | 45.3 °F | 60.2 °F | 4.69 in. |
| November | 39.5 °F | 51.8 °F | 7.92 in. |
| December | 36.0 °F | 46.5 °F | 8.83 in. |
| Annual | 44.5 °F | 60.4 °F | 50.36 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 40-50 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 | Csb - Warm-Summer Mediterranean Climate |