| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Sep.11 - Sep. 20 |
| Average Last Frost Date: | Jun. 11 - Jun. 20 |
| Koppen-Geiger Climate Zone: | Dsa - Humid Continental Climate - Dry Warm Summer |
| Ecoregion: | 16k - Southern Forested Mountains |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 83666 - Placerville, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 26 | 32 | 39 | 45 | 51 | 51 | 43 | 34 | 25 | 17 | 33 |
| Avg Max Temp (°F) | 34 | 39 | 47 | 56 | 65 | 74 | 83 | 83 | 73 | 60 | 41 | 33 | 57 |
| Avg Precip (In.) | 4.04 | 3.21 | 2.71 | 2.19 | 2.04 | 1.52 | .79 | .56 | 1.31 | 1.67 | 3.56 | 4.02 | 27.64 |