| 2023 Hardiness Zone: | 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. 21 - Jan. 31 |
| Average Last Frost Date: | Jan. 21 - Jan. 31 |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 96019 - Shasta Lake, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 40 | 43 | 46 | 54 | 61 | 67 | 65 | 60 | 53 | 43 | 38 | 51 |
| Avg Max Temp (°F) | 55 | 59 | 64 | 71 | 80 | 90 | 97 | 96 | 90 | 78 | 62 | 55 | 75 |
| Avg Precip (In.) | 7.9 | 6.96 | 6.76 | 2.93 | 1.93 | .94 | .16 | .33 | .9 | 2.14 | 5.26 | 6.02 | 42.21 |