| 2023 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 2012 Hardiness Zone: | Zone 10b: 35°F to 40°F Zone 10a: 30°F to 35°F |
| 1990 Hardiness Zone: | Zone 10a: 30F to 35F |
| Average First Frost Date: | No Frost |
| Average Last Frost Date: | Frost Rare |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 91205 - Glendale, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 45 | 47 | 48 | 51 | 55 | 59 | 62 | 63 | 62 | 56 | 49 | 45 | 54 |
| Avg Max Temp (°F) | 68 | 70 | 70 | 75 | 76 | 82 | 87 | 88 | 86 | 81 | 74 | 69 | 77 |
| Avg Precip (In.) | 3.74 | 4.19 | 3.56 | .9 | .34 | .08 | .02 | .15 | .35 | .49 | 1.26 | 2.1 | 17.17 |