Cannon Beach, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 46.3 °F (low) to 58.6 °F (high). Annual precipitation averages 81.5 Inches. Cannon 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 | 40.0 °F | 50.1 °F | 11.88 in. |
| February | 39.9 °F | 51.6 °F | 8.64 in. |
| March | 41.7 °F | 53.5 °F | 9.19 in. |
| April | 42.8 °F | 56.7 °F | 6.93 in. |
| May | 47.7 °F | 60.1 °F | 3.97 in. |
| June | 50.4 °F | 63.3 °F | 3.0 in. |
| July | 54.7 °F | 66.9 °F | 0.96 in. |
| August | 54.2 °F | 67.9 °F | 1.48 in. |
| September | 52.6 °F | 67.4 °F | 2.98 in. |
| October | 48.1 °F | 61.5 °F | 7.38 in. |
| November | 44.0 °F | 54.3 °F | 12.38 in. |
| December | 40.0 °F | 49.7 °F | 12.75 in. |
| Annual | 46.3 °F | 58.6 °F | 81.54 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 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |