Radium Springs, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 8 °C (low) to 25.9 °C (high). Annual precipitation averages 255.5 Millimeters. Radium Springs is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.5 °C | 14.8 °C | 14.99 mm |
| February | -0.3 °C | 17.7 °C | 13.46 mm |
| March | 3.1 °C | 21.9 °C | 10.67 mm |
| April | 6.7 °C | 26.1 °C | 7.11 mm |
| May | 11.5 °C | 30.9 °C | 8.64 mm |
| June | 17.3 °C | 35.9 °C | 13.97 mm |
| July | 19.7 °C | 35.8 °C | 44.45 mm |
| August | 18.9 °C | 34.6 °C | 52.58 mm |
| September | 15.1 °C | 31.6 °C | 37.34 mm |
| October | 8.1 °C | 26.6 °C | 28.7 mm |
| November | 1.5 °C | 19.9 °C | 10.41 mm |
| December | -2.6 °C | 14.4 °C | 13.21 mm |
| Annual | 8 °C | 25.9 °C | 255.53 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |