| 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 9a: 20F to 25F | |
| Average First Frost Date: | Jan. 21 - Jan. 31 | |
| Average Last Frost Date: | Jan. 21 - Jan. 31 | |
| 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 85048 - Phoenix, AZ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 38 | 42 | 46 | 51 | 60 | 69 | 77 | 76 | 69 | 56 | 44 | 38 | 55 |
| Avg Max Temp (°F) | 66 | 71 | 76 | 85 | 94 | 103 | 105 | 104 | 99 | 88 | 75 | 66 | 86 |
| Avg Precip (In.) | .86 | .91 | 1.13 | .28 | .17 | .1 | .99 | 1.06 | .81 | .79 | .73 | .95 | 8.79 |