Roosevelt, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.2 °C (low) to 16.7 °C (high). Annual precipitation averages 191.5 Millimeters. Roosevelt is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.3 °C | -1.3 °C | 11.94 mm |
| February | -9.9 °C | 3.8 °C | 10.16 mm |
| March | -3.8 °C | 12.2 °C | 12.95 mm |
| April | 0.1 °C | 17.2 °C | 18.29 mm |
| May | 5 °C | 22.5 °C | 22.35 mm |
| June | 9.2 °C | 28.8 °C | 12.45 mm |
| July | 13.1 °C | 32.8 °C | 11.43 mm |
| August | 12 °C | 31.3 °C | 17.27 mm |
| September | 7.2 °C | 26.1 °C | 26.67 mm |
| October | 0.7 °C | 17.8 °C | 24.64 mm |
| November | -5.4 °C | 8.5 °C | 9.65 mm |
| December | -11.9 °C | 0.3 °C | 13.72 mm |
| Annual | 0.2 °C | 16.7 °C | 191.52 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |