| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 6b: -5°F to 0°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 1d - Volcanics |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98320 - Brinnon, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 34 | 37 | 40 | 45 | 49 | 53 | 53 | 49 | 43 | 37 | 34 | 42 |
| Avg Max Temp (°F) | 45 | 49 | 54 | 59 | 66 | 71 | 76 | 77 | 72 | 61 | 50 | 45 | 60 |
| Avg Precip (In.) | 7.62 | 7.13 | 5.88 | 3.72 | 2.42 | 1.83 | 1.09 | 1.15 | 1.89 | 4.23 | 8.28 | 9.22 | 54.47 |