Nogales, Arizona has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 7.9 °C (low) to 26.5 °C (high). Annual precipitation averages 424.2 Millimeters. Nogales is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.5 °C | 18 °C | 25.65 mm |
| February | 0.7 °C | 19.1 °C | 25.65 mm |
| March | 3.1 °C | 22.2 °C | 22.1 mm |
| April | 5.3 °C | 25.8 °C | 9.4 mm |
| May | 9.3 °C | 30.2 °C | 3.81 mm |
| June | 14.8 °C | 35.1 °C | 10.92 mm |
| July | 18.9 °C | 34.1 °C | 110.24 mm |
| August | 18.2 °C | 33.1 °C | 97.03 mm |
| September | 14.9 °C | 31.8 °C | 44.2 mm |
| October | 8.3 °C | 28 °C | 28.19 mm |
| November | 2.8 °C | 22.5 °C | 15.75 mm |
| December | -0.7 °C | 17.7 °C | 31.24 mm |
| Annual | 7.9 °C | 26.5 °C | 424.18 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |