Arroyo Seco, New Mexico has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.4 °C (low) to 16.1 °C (high). Annual precipitation averages 412 Millimeters. Arroyo Seco is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.8 °C | 4.4 °C | 23.37 mm |
| February | -9 °C | 6.4 °C | 19.3 mm |
| March | -5.9 °C | 11 °C | 30.73 mm |
| April | -2.4 °C | 14.9 °C | 27.43 mm |
| May | 1.9 °C | 20.3 °C | 32.77 mm |
| June | 6.3 °C | 26.2 °C | 24.38 mm |
| July | 9.5 °C | 28 °C | 59.94 mm |
| August | 8.9 °C | 26.5 °C | 53.34 mm |
| September | 5 °C | 23.2 °C | 39.88 mm |
| October | -1.2 °C | 16.9 °C | 41.91 mm |
| November | -6.8 °C | 10.2 °C | 28.19 mm |
| December | -11.2 °C | 4.7 °C | 30.73 mm |
| Annual | -1.4 °C | 16.1 °C | 411.97 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |