Empire, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -3.3 °C (low) to 12.1 °C (high). Annual precipitation averages 476.8 Millimeters. 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 | -11.2 °C | 1.7 °C | 21.34 mm |
| February | -11.4 °C | 2.4 °C | 26.67 mm |
| March | -8.2 °C | 6.4 °C | 44.2 mm |
| April | -5.1 °C | 9.7 °C | 60.45 mm |
| May | -0.6 °C | 14.8 °C | 45.72 mm |
| June | 3.5 °C | 21.4 °C | 37.34 mm |
| July | 6.9 °C | 24.6 °C | 64.77 mm |
| August | 5.9 °C | 23.3 °C | 54.61 mm |
| September | 2 °C | 19.7 °C | 40.39 mm |
| October | -2.8 °C | 12.9 °C | 31.24 mm |
| November | -7.7 °C | 6.3 °C | 25.15 mm |
| December | -11.4 °C | 1.6 °C | 24.89 mm |
| Annual | -3.3 °C | 12.1 °C | 476.77 mm |
| 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 : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |