Regina, New Mexico has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29 °F (low) to 62.6 °F (high). Annual precipitation averages 15.9 Inches. Regina is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.6 °F | 41.5 °F | 1.19 in. |
| February | 15.3 °F | 44.5 °F | 1.04 in. |
| March | 21.7 °F | 52.3 °F | 1.16 in. |
| April | 25.9 °F | 60.6 °F | 1.1 in. |
| May | 33.9 °F | 70.4 °F | 0.91 in. |
| June | 42.2 °F | 81.9 °F | 0.7 in. |
| July | 49.1 °F | 84.9 °F | 2.24 in. |
| August | 48.4 °F | 82.0 °F | 2.44 in. |
| September | 40.2 °F | 75.7 °F | 1.78 in. |
| October | 28.6 °F | 64.4 °F | 1.07 in. |
| November | 19.3 °F | 51.4 °F | 1.11 in. |
| December | 11.6 °F | 41.8 °F | 1.14 in. |
| Annual | 29 °F | 62.6 °F | 15.88 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |