| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfb - Oceanic Climate |
| Ecoregion: | 1a - Coastal Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98595 - Westport, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 37 | 38 | 41 | 45 | 48 | 51 | 51 | 48 | 43 | 39 | 36 | 43 |
| Avg Max Temp (°F) | 48 | 51 | 53 | 56 | 60 | 63 | 66 | 68 | 67 | 61 | 53 | 48 | 58 |
| Avg Precip (In.) | 10.69 | 9.07 | 8.35 | 5.54 | 3.64 | 2.55 | 1.53 | 1.69 | 3.12 | 6.95 | 11.08 | 11.48 | 75.67 |