| 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 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | Cfb - Oceanic Climate | |
| Ecoregion: | 2e - Eastern Puget Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 98059 - Renton, WA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 35 | 37 | 40 | 45 | 50 | 53 | 53 | 49 | 43 | 38 | 34 | 42 |
| Avg Max Temp (°F) | 45 | 49 | 54 | 59 | 65 | 70 | 76 | 76 | 71 | 60 | 50 | 44 | 60 |
| Avg Precip (In.) | 6.54 | 5.18 | 4.77 | 3.5 | 2.72 | 2.28 | 1.11 | 1.28 | 2.12 | 4.12 | 7.42 | 7.24 | 48.29 |