| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°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 98310 - Bremerton, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 36 | 38 | 41 | 46 | 51 | 54 | 55 | 51 | 44 | 39 | 35 | 44 |
| Avg Max Temp (°F) | 46 | 49 | 54 | 59 | 65 | 70 | 75 | 76 | 71 | 61 | 51 | 46 | 60 |
| Avg Precip (In.) | 7.41 | 6.84 | 5.69 | 3.37 | 2.27 | 1.64 | .94 | 1.09 | 1.88 | 4.35 | 8.51 | 8.8 | 52.81 |