| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F 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: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 95713 - Colfax, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 37 | 38 | 42 | 48 | 54 | 59 | 58 | 54 | 47 | 39 | 34 | 45 |
| Avg Max Temp (°F) | 54 | 57 | 60 | 66 | 74 | 83 | 90 | 90 | 84 | 75 | 61 | 54 | 71 |
| Avg Precip (In.) | 8.99 | 8.35 | 7.53 | 3.27 | 1.73 | .6 | .17 | .22 | 1.03 | 2.66 | 6.41 | 7.2 | 48.14 |