Sedillo, New Mexico has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 2.7 °C (low) to 18.1 °C (high). Annual precipitation averages 466.9 Millimeters. Sedillo is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.3 °C | 6.5 °C | 31.75 mm |
| February | -4.6 °C | 9.1 °C | 22.61 mm |
| March | -1.8 °C | 13.3 °C | 32.26 mm |
| April | 0.8 °C | 17.2 °C | 23.11 mm |
| May | 5.7 °C | 22.6 °C | 30.99 mm |
| June | 10.4 °C | 28.7 °C | 19.05 mm |
| July | 12.9 °C | 29.2 °C | 76.45 mm |
| August | 12.3 °C | 27.8 °C | 84.58 mm |
| September | 8.7 °C | 24.7 °C | 46.99 mm |
| October | 3 °C | 18.7 °C | 35.31 mm |
| November | -2.3 °C | 12.1 °C | 25.15 mm |
| December | -6.1 °C | 6.8 °C | 38.61 mm |
| Annual | 2.7 °C | 18.1 °C | 466.86 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |