| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Dec. 11 - Dec. 20 | |
| Average Last Frost Date: | Feb. 21 - Feb. 29 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 95377 - Tracy, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 38 | 40 | 42 | 49 | 53 | 56 | 55 | 53 | 47 | 39 | 34 | 45 |
| Avg Max Temp (°F) | 55 | 60 | 64 | 70 | 77 | 84 | 91 | 90 | 86 | 77 | 64 | 56 | 73 |
| Avg Precip (In.) | 2.61 | 2.44 | 2.2 | .88 | .75 | .11 | .04 | .08 | .33 | .78 | 1.62 | 1.79 | 13.62 |