Hernandez, New Mexico has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.9 °C (low) to 20.6 °C (high). Annual precipitation averages 264.2 Millimeters. Hernandez is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.2 °C | 8.3 °C | 11.43 mm |
| February | -6.2 °C | 11.2 °C | 8.38 mm |
| March | -2.9 °C | 16.2 °C | 14.48 mm |
| April | 0.8 °C | 20.3 °C | 13.97 mm |
| May | 5.2 °C | 25.3 °C | 19.3 mm |
| June | 10 °C | 30.9 °C | 16.51 mm |
| July | 13.9 °C | 32.3 °C | 40.39 mm |
| August | 12.9 °C | 30.7 °C | 47.75 mm |
| September | 8.3 °C | 27.4 °C | 31.75 mm |
| October | 1.4 °C | 21.5 °C | 28.45 mm |
| November | -4.7 °C | 14.2 °C | 16.76 mm |
| December | -8.2 °C | 8.4 °C | 14.99 mm |
| Annual | 1.9 °C | 20.6 °C | 264.16 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |