Cannon Beach, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 8 °C (low) to 14.8 °C (high). Annual precipitation averages 2071.1 Millimeters. 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 | 4.4 °C | 10.1 °C | 301.75 mm |
| February | 4.4 °C | 10.9 °C | 219.46 mm |
| March | 5.4 °C | 11.9 °C | 233.43 mm |
| April | 6 °C | 13.7 °C | 176.02 mm |
| May | 8.7 °C | 15.6 °C | 100.84 mm |
| June | 10.2 °C | 17.4 °C | 76.2 mm |
| July | 12.6 °C | 19.4 °C | 24.38 mm |
| August | 12.3 °C | 19.9 °C | 37.59 mm |
| September | 11.4 °C | 19.7 °C | 75.69 mm |
| October | 8.9 °C | 16.4 °C | 187.45 mm |
| November | 6.7 °C | 12.4 °C | 314.45 mm |
| December | 4.4 °C | 9.8 °C | 323.85 mm |
| Annual | 8 °C | 14.8 °C | 2071.11 mm |
| 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 : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |