| 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: | Frost Rare | |
| Koppen-Geiger Climate Zone: | BWh - Hot Desert Climate | |
| Ecoregion: | ||
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 151 - 180 days Over 86°F |
Annual Climate Data for ZIP Code 85301 - Glendale, AZ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 42 | 46 | 51 | 60 | 68 | 77 | 76 | 69 | 56 | 44 | 39 | 56 |
| Avg Max Temp (°F) | 68 | 72 | 77 | 84 | 94 | 103 | 105 | 104 | 99 | 89 | 75 | 67 | 86 |
| Avg Precip (In.) | .87 | .99 | 1.14 | .22 | .18 | .07 | .75 | 1.03 | .73 | .69 | .73 | .91 | 8.31 |