| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F 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: | Feb. 21 - Feb. 29 |
| 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 95668 - Pleasant Grove, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 41 | 44 | 47 | 52 | 57 | 59 | 59 | 56 | 50 | 43 | 37 | 49 |
| Avg Max Temp (°F) | 54 | 61 | 66 | 73 | 82 | 89 | 95 | 94 | 89 | 79 | 64 | 55 | 75 |
| Avg Precip (In.) | 4.04 | 3.6 | 3.12 | 1.31 | .62 | .22 | .07 | .05 | .39 | 1.09 | 2.51 | 3.07 | 20.09 |