| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F |
| Average First Frost Date: | Jan. 1 - Jan. 10 |
| 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 95660 - North Highlands, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 42 | 45 | 47 | 52 | 57 | 60 | 59 | 57 | 51 | 44 | 38 | 49 |
| Avg Max Temp (°F) | 55 | 61 | 66 | 73 | 81 | 89 | 94 | 93 | 89 | 79 | 64 | 55 | 75 |
| Avg Precip (In.) | 4.16 | 3.77 | 3.23 | 1.33 | .63 | .22 | .05 | .05 | .37 | 1.07 | 2.63 | 2.98 | 20.49 |