Roosevelt, Arizona has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 13 °C (low) to 28.5 °C (high). Annual precipitation averages 392.2 Millimeters. Roosevelt is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.4 °C | 17.1 °C | 55.88 mm |
| February | 4.8 °C | 19.2 °C | 45.97 mm |
| March | 7.4 °C | 23.1 °C | 50.55 mm |
| April | 10.8 °C | 27.5 °C | 13.97 mm |
| May | 15.8 °C | 32.8 °C | 9.14 mm |
| June | 20.8 °C | 38.6 °C | 2.03 mm |
| July | 24.2 °C | 39.7 °C | 37.85 mm |
| August | 23.7 °C | 38.9 °C | 45.72 mm |
| September | 20.4 °C | 35.9 °C | 33.78 mm |
| October | 13.8 °C | 29.8 °C | 20.83 mm |
| November | 7.7 °C | 22.4 °C | 26.42 mm |
| December | 3.7 °C | 16.6 °C | 50.04 mm |
| Annual | 13 °C | 28.5 °C | 392.18 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 40-50 Days |
| 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 | BSh - Hot Semi-Arid Climate |