| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°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 Zone 7b: 5°F to 10°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 2f - Central Puget Lowland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98560 - Matlock, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 33 | 35 | 38 | 42 | 47 | 50 | 50 | 46 | 41 | 36 | 33 | 40 |
| Avg Max Temp (°F) | 44 | 48 | 52 | 58 | 64 | 69 | 74 | 75 | 70 | 59 | 49 | 43 | 59 |
| Avg Precip (In.) | 14.52 | 13.38 | 11.83 | 8.09 | 4.37 | 3.06 | 1.72 | 2.42 | 4.71 | 8.79 | 16.08 | 16.85 | 105.83 |