| 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 |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Jan. 21 - Jan. 31 |
| Average Last Frost Date: | Jan. 21 - Jan. 31 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 95053 - Santa Clara, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 40 | 43 | 45 | 46 | 50 | 54 | 56 | 56 | 55 | 51 | 45 | 40 | 49 |
| Avg Max Temp (°F) | 59 | 63 | 67 | 71 | 76 | 81 | 84 | 84 | 82 | 76 | 65 | 59 | 72 |
| Avg Precip (In.) | 3.24 | 2.99 | 2.83 | .99 | .49 | .1 | .07 | .09 | .22 | .91 | 1.85 | 2.12 | 15.9 |