| 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: | Frost Rare | |
| Average Last Frost Date: | No Frost | |
| Koppen-Geiger Climate Zone: | BWh - Hot Desert Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 181 - 210 days Over 86°F |
Annual Climate Data for ZIP Code 85307 - Glendale, AZ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 43 | 47 | 52 | 61 | 70 | 77 | 76 | 69 | 57 | 45 | 39 | 56 |
| Avg Max Temp (°F) | 68 | 72 | 77 | 86 | 95 | 104 | 107 | 105 | 100 | 90 | 76 | 68 | 87 |
| Avg Precip (In.) | 1 | 1.1 | 1.13 | .28 | .14 | .06 | .77 | 1.03 | .8 | .74 | .7 | 1.01 | 8.77 |