| 2023 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 9b: 25°F to 30°F Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 9b: 25F to 30F | |
| Average First Frost Date: | Jan. 11 - Jan. 20 | |
| Average Last Frost Date: | Feb. 1 - Feb. 10 | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 91321 - Newhall, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 41 | 41 | 42 | 44 | 49 | 53 | 57 | 58 | 56 | 50 | 44 | 40 | 48 |
| Avg Max Temp (°F) | 65 | 66 | 69 | 74 | 79 | 87 | 93 | 94 | 89 | 81 | 71 | 65 | 78 |
| Avg Precip (In.) | 4.18 | 4.4 | 3.68 | .9 | .32 | .06 | .02 | .12 | .31 | .6 | 1.36 | 2.38 | 18.35 |