Tolleson, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 15.4 °C (low) to 30.6 °C (high). Annual precipitation averages 218.7 Millimeters. Tolleson is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.8 °C | 19.5 °C | 28.19 mm |
| February | 7.7 °C | 21.8 °C | 29.72 mm |
| March | 10.4 °C | 25.6 °C | 26.16 mm |
| April | 13.1 °C | 29.7 °C | 7.87 mm |
| May | 18.2 °C | 34.7 °C | 3.56 mm |
| June | 23.3 °C | 39.9 °C | 1.27 mm |
| July | 26.8 °C | 41.4 °C | 19.81 mm |
| August | 26.6 °C | 40.6 °C | 24.89 mm |
| September | 22.8 °C | 38 °C | 18.8 mm |
| October | 15.6 °C | 31.8 °C | 14.22 mm |
| November | 9.3 °C | 24.6 °C | 17.27 mm |
| December | 5.3 °C | 19.1 °C | 26.92 mm |
| Annual | 15.4 °C | 30.6 °C | 218.68 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |