Monte Vista, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -3.7 °C (low) to 14.8 °C (high). Annual precipitation averages 222 Millimeters. Monte Vista is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.3 °C | 0.6 °C | 9.91 mm |
| February | -13.3 °C | 4.1 °C | 7.37 mm |
| March | -7.5 °C | 10.5 °C | 17.02 mm |
| April | -3.8 °C | 14.7 °C | 19.81 mm |
| May | 1.3 °C | 19.6 °C | 18.54 mm |
| June | 5.3 °C | 25.2 °C | 10.67 mm |
| July | 8.6 °C | 26.8 °C | 37.34 mm |
| August | 7.6 °C | 25.8 °C | 35.81 mm |
| September | 3.5 °C | 22.9 °C | 24.64 mm |
| October | -3 °C | 16.8 °C | 20.83 mm |
| November | -9.7 °C | 8.9 °C | 10.16 mm |
| December | -16.1 °C | 1.6 °C | 9.91 mm |
| Annual | -3.7 °C | 14.8 °C | 222.01 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |