| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 2f - Central Puget Lowland |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98584 - Shelton, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 34 | 36 | 39 | 44 | 49 | 52 | 52 | 48 | 41 | 37 | 33 | 41 |
| Avg Max Temp (°F) | 45 | 49 | 54 | 60 | 67 | 71 | 77 | 77 | 72 | 61 | 50 | 45 | 60 |
| Avg Precip (In.) | 9.12 | 8.11 | 6.41 | 4.13 | 2.51 | 1.7 | .99 | 1.22 | 2.28 | 4.89 | 10.03 | 10.08 | 61.47 |