| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 2d - Olympic Rainshadow | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98236 - Clinton, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 35 | 38 | 41 | 46 | 51 | 54 | 54 | 49 | 43 | 38 | 34 | 43 |
| Avg Max Temp (°F) | 46 | 49 | 53 | 58 | 64 | 69 | 73 | 74 | 69 | 60 | 51 | 46 | 59 |
| Avg Precip (In.) | 4.26 | 3.72 | 3.71 | 2.72 | 2.32 | 1.95 | 1.17 | 1.25 | 1.82 | 3.01 | 4.91 | 5.25 | 36.08 |