| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°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 8b: 15F to 20F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 1a - Coastal Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98586 - South Bend, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 36 | 37 | 39 | 44 | 48 | 52 | 53 | 49 | 43 | 38 | 36 | 42 |
| Avg Max Temp (°F) | 47 | 50 | 53 | 58 | 64 | 68 | 73 | 73 | 71 | 62 | 52 | 47 | 60 |
| Avg Precip (In.) | 12.71 | 10.48 | 9.56 | 6.4 | 3.77 | 2.99 | 1.43 | 1.93 | 3.37 | 7.47 | 11.66 | 13.87 | 85.65 |