| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Sep.11 - Sep. 20 | |
| Average Last Frost Date: | Jun. 11 - Jun. 20 | |
| Koppen-Geiger Climate Zone: | Dsb - Humid Continental Climate - Dry Cool Summer | |
| Ecoregion: | 77h - Chiwaukum Hills and Lowlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 98826 - Leavenworth, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 23 | 28 | 35 | 40 | 46 | 51 | 50 | 43 | 34 | 28 | 20 | 35 |
| Avg Max Temp (°F) | 34 | 41 | 51 | 61 | 70 | 77 | 85 | 86 | 76 | 62 | 43 | 33 | 60 |
| Avg Precip (In.) | 3.47 | 2.32 | 1.5 | .83 | .66 | .69 | .35 | .46 | .56 | 1.37 | 2.95 | 3.69 | 18.85 |