| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | 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: | 4a - Western Cascades Lowlands and Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98585 - Silver Creek, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 33 | 34 | 37 | 42 | 47 | 50 | 50 | 46 | 40 | 35 | 32 | 40 |
| Avg Max Temp (°F) | 44 | 49 | 53 | 58 | 65 | 70 | 77 | 77 | 72 | 61 | 49 | 44 | 60 |
| Avg Precip (In.) | 6.64 | 5.66 | 5.45 | 4.26 | 3.19 | 2.75 | 1.05 | 1.52 | 2.52 | 4.89 | 7.24 | 8.63 | 53.81 |