| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 95714 - Dutch Flat, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 34 | 35 | 39 | 45 | 52 | 58 | 57 | 53 | 45 | 37 | 33 | 43 |
| Avg Max Temp (°F) | 51 | 53 | 56 | 62 | 70 | 79 | 86 | 86 | 80 | 70 | 57 | 51 | 67 |
| Avg Precip (In.) | 10.6 | 10.15 | 9.1 | 4.15 | 2.35 | .74 | .24 | .3 | 1.23 | 3.22 | 7.75 | 8.6 | 58.42 |