Questa, New Mexico has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.5 °C (low) to 16.7 °C (high). Annual precipitation averages 341.1 Millimeters. Questa 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 | -13.2 °C | 3.7 °C | 17.53 mm |
| February | -9.5 °C | 6.4 °C | 17.53 mm |
| March | -5.7 °C | 11.6 °C | 25.65 mm |
| April | -2.5 °C | 16.3 °C | 23.11 mm |
| May | 2.2 °C | 21.3 °C | 32.26 mm |
| June | 6.4 °C | 27.1 °C | 16.26 mm |
| July | 10.1 °C | 28.9 °C | 41.4 mm |
| August | 9.3 °C | 27.6 °C | 53.34 mm |
| September | 5.4 °C | 24.4 °C | 39.88 mm |
| October | -1.3 °C | 18.4 °C | 28.7 mm |
| November | -7.2 °C | 10.6 °C | 22.1 mm |
| December | -12.3 °C | 4.2 °C | 23.37 mm |
| Annual | -1.5 °C | 16.7 °C | 341.13 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 | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |