| 2023 Hardiness Zone: | 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 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 10a - Channeled Scablands |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 98828 - Malaga, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 24 | 30 | 36 | 44 | 50 | 56 | 56 | 48 | 38 | 29 | 21 | 38 |
| Avg Max Temp (°F) | 33 | 40 | 51 | 60 | 68 | 75 | 84 | 84 | 75 | 60 | 42 | 33 | 59 |
| Avg Precip (In.) | 3.22 | 2.29 | 1.4 | .95 | .93 | .87 | .46 | .55 | .68 | 1.44 | 2.62 | 3.39 | 18.79 |