| 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: | Dec. 1 - Dec. 10 |
| Average Last Frost Date: | Mar. 1 - Mar. 10 |
| 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 95630 - Folsom, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 42 | 44 | 47 | 51 | 56 | 60 | 59 | 57 | 52 | 44 | 38 | 49 |
| Avg Max Temp (°F) | 54 | 61 | 65 | 71 | 80 | 89 | 95 | 94 | 89 | 79 | 64 | 55 | 75 |
| Avg Precip (In.) | 4.25 | 4.05 | 3.97 | 1.67 | .68 | .22 | .11 | .1 | .45 | 1.28 | 3.11 | 3.13 | 23.01 |