| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Jan. 1 - Jan. 10 | |
| Average Last Frost Date: | Feb. 1 - Feb. 10 | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 95228 - Copperopolis, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 38 | 40 | 42 | 48 | 53 | 58 | 58 | 54 | 47 | 39 | 34 | 45 |
| Avg Max Temp (°F) | 55 | 61 | 64 | 71 | 80 | 88 | 95 | 94 | 89 | 79 | 64 | 56 | 75 |
| Avg Precip (In.) | 5.76 | 4.98 | 4.75 | 2.35 | 1.14 | .34 | .08 | .09 | .4 | 1.44 | 3.23 | 4.35 | 28.9 |