Loma, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 3 °C (low) to 19.5 °C (high). Annual precipitation averages 247.9 Millimeters. Loma is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9 °C | 3.9 °C | 20.07 mm |
| February | -5.3 °C | 8.4 °C | 13.97 mm |
| March | -1.7 °C | 15 °C | 21.08 mm |
| April | 2.1 °C | 18.9 °C | 22.1 mm |
| May | 7.3 °C | 24.7 °C | 21.34 mm |
| June | 11.8 °C | 31.5 °C | 12.7 mm |
| July | 15.8 °C | 34.5 °C | 17.78 mm |
| August | 14.8 °C | 32.7 °C | 22.61 mm |
| September | 9.3 °C | 28.1 °C | 30.23 mm |
| October | 2.6 °C | 20.1 °C | 32 mm |
| November | -3.4 °C | 11.7 °C | 16.51 mm |
| December | -8.4 °C | 4.4 °C | 17.53 mm |
| Annual | 3 °C | 19.5 °C | 247.92 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |