Rock Springs, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.5 °C (low) to 18.9 °C (high). Annual precipitation averages 281.4 Millimeters. Rock Springs is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.3 °C | 6.9 °C | 21.34 mm |
| February | -6.1 °C | 9.4 °C | 19.05 mm |
| March | -3.8 °C | 13.8 °C | 16.26 mm |
| April | -0.3 °C | 17.9 °C | 14.99 mm |
| May | 4.3 °C | 22.9 °C | 12.95 mm |
| June | 9.1 °C | 29.4 °C | 7.87 mm |
| July | 13.3 °C | 30.8 °C | 39.62 mm |
| August | 12.7 °C | 29.3 °C | 50.29 mm |
| September | 8.3 °C | 26.1 °C | 33.27 mm |
| October | 1.4 °C | 20.1 °C | 24.13 mm |
| November | -4.3 °C | 12.7 °C | 17.53 mm |
| December | -8.3 °C | 7.1 °C | 24.13 mm |
| Annual | 1.5 °C | 18.9 °C | 281.43 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |