Buena Vista, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2.9 °C (low) to 14.8 °C (high). Annual precipitation averages 264.2 Millimeters. Buena Vista is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.7 °C | 3.6 °C | 9.14 mm |
| February | -11.2 °C | 4.8 °C | 12.19 mm |
| March | -7.2 °C | 9.3 °C | 17.02 mm |
| April | -4 °C | 13.1 °C | 26.67 mm |
| May | 0.6 °C | 18.3 °C | 30.48 mm |
| June | 4.9 °C | 24.7 °C | 17.53 mm |
| July | 8.1 °C | 26.8 °C | 39.37 mm |
| August | 7.2 °C | 25.7 °C | 42.67 mm |
| September | 3.1 °C | 22.3 °C | 24.13 mm |
| October | -2.6 °C | 16.1 °C | 21.59 mm |
| November | -8.1 °C | 8.9 °C | 10.92 mm |
| December | -12.4 °C | 3.4 °C | 12.45 mm |
| Annual | -2.9 °C | 14.8 °C | 264.16 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |