| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F | |
| 2012 Hardiness Zone: | Zone 10a: 30°F to 35°F | |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F | |
| Average First Frost Date: | Frost Rare | |
| Average Last Frost Date: | Frost Rare | |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 91201 - Glendale, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 44 | 46 | 47 | 50 | 54 | 58 | 62 | 62 | 60 | 55 | 47 | 43 | 52 |
| Avg Max Temp (°F) | 67 | 69 | 70 | 75 | 77 | 83 | 88 | 90 | 87 | 81 | 73 | 68 | 77 |
| Avg Precip (In.) | 3.63 | 4.17 | 3.62 | .9 | .33 | .09 | .02 | .18 | .28 | .54 | 1.2 | 2.07 | 17.05 |