| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F |
| Average First Frost Date: | Sep.11 - Sep. 20 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 95971 - Quincy, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 27 | 29 | 32 | 37 | 43 | 47 | 45 | 41 | 34 | 29 | 24 | 34 |
| Avg Max Temp (°F) | 46 | 50 | 56 | 62 | 71 | 80 | 88 | 87 | 81 | 70 | 54 | 45 | 66 |
| Avg Precip (In.) | 8.89 | 7.02 | 7.22 | 3.3 | 1.8 | .77 | .24 | .31 | .92 | 3.08 | 6.42 | 7.46 | 47.43 |