| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°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 | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98546 - Grapeview, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 35 | 37 | 40 | 45 | 49 | 53 | 53 | 49 | 43 | 38 | 35 | 43 |
| Avg Max Temp (°F) | 45 | 49 | 53 | 59 | 65 | 70 | 74 | 76 | 70 | 60 | 50 | 45 | 60 |
| Avg Precip (In.) | 7.81 | 6.94 | 5.97 | 3.67 | 2.32 | 1.81 | .96 | 1.14 | 1.99 | 4.51 | 8.49 | 8.67 | 54.29 |