| 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 | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 2a - Fraser Lowland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98248 - Ferndale, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 32 | 35 | 37 | 41 | 46 | 50 | 53 | 53 | 48 | 42 | 37 | 33 | 42 |
| Avg Max Temp (°F) | 45 | 49 | 52 | 57 | 63 | 67 | 71 | 72 | 68 | 59 | 50 | 45 | 58 |
| Avg Precip (In.) | 4.91 | 3.53 | 3.13 | 2.78 | 2.44 | 2.05 | 1.46 | 1.39 | 1.61 | 3.39 | 5.54 | 4.99 | 37.22 |