Brenda, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 12.7 °C (low) to 29.9 °C (high). Annual precipitation averages 159.5 Millimeters. Brenda is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.9 °C | 18.7 °C | 21.08 mm |
| February | 4.6 °C | 20.8 °C | 22.1 mm |
| March | 7.3 °C | 24.7 °C | 17.53 mm |
| April | 10.6 °C | 28.9 °C | 4.83 mm |
| May | 15.4 °C | 33.9 °C | 2.79 mm |
| June | 20.1 °C | 39.3 °C | 0.51 mm |
| July | 24.8 °C | 41.4 °C | 17.27 mm |
| August | 24.6 °C | 40.8 °C | 22.86 mm |
| September | 20.5 °C | 37.7 °C | 14.73 mm |
| October | 12.9 °C | 31.3 °C | 9.14 mm |
| November | 6.4 °C | 23.8 °C | 8.89 mm |
| December | 2.5 °C | 18 °C | 17.78 mm |
| Annual | 12.7 °C | 29.9 °C | 159.51 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |