| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Dec. 21 - Dec. 31 |
| Average Last Frost Date: | Feb. 11 - Feb. 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 94062 - Redwood City, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 39 | 41 | 42 | 45 | 48 | 51 | 51 | 49 | 46 | 41 | 37 | 44 |
| Avg Max Temp (°F) | 58 | 61 | 64 | 69 | 73 | 79 | 82 | 82 | 80 | 75 | 64 | 58 | 70 |
| Avg Precip (In.) | 8.2 | 8.16 | 6.51 | 2.79 | .96 | .29 | .11 | .17 | .44 | 2.19 | 5.31 | 6.18 | 41.29 |