Empire, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 26 °F (low) to 53.7 °F (high). Annual precipitation averages 18.8 Inches. Empire 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.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.8 °F | 35.0 °F | 0.84 in. |
| February | 11.5 °F | 36.3 °F | 1.05 in. |
| March | 17.3 °F | 43.5 °F | 1.74 in. |
| April | 22.9 °F | 49.5 °F | 2.38 in. |
| May | 30.9 °F | 58.6 °F | 1.8 in. |
| June | 38.3 °F | 70.5 °F | 1.47 in. |
| July | 44.4 °F | 76.2 °F | 2.55 in. |
| August | 42.6 °F | 74.0 °F | 2.15 in. |
| September | 35.6 °F | 67.4 °F | 1.59 in. |
| October | 26.9 °F | 55.3 °F | 1.23 in. |
| November | 18.2 °F | 43.3 °F | 0.99 in. |
| December | 11.4 °F | 34.9 °F | 0.98 in. |
| Annual | 26 °F | 53.7 °F | 18.77 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |