Central City, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2 °C (low) to 11.9 °C (high). Annual precipitation averages 538.2 Millimeters. Central City 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 Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.8 °C | 1.9 °C | 23.11 mm |
| February | -9.8 °C | 2.6 °C | 27.43 mm |
| March | -7 °C | 6.6 °C | 45.97 mm |
| April | -4.3 °C | 9.5 °C | 69.09 mm |
| May | 0.4 °C | 14.4 °C | 68.33 mm |
| June | 4.8 °C | 20.9 °C | 50.04 mm |
| July | 8.4 °C | 24.2 °C | 70.1 mm |
| August | 7.4 °C | 22.9 °C | 56.39 mm |
| September | 3.7 °C | 19.3 °C | 42.93 mm |
| October | -1.6 °C | 12.7 °C | 33.53 mm |
| November | -6.3 °C | 6.3 °C | 26.92 mm |
| December | -10.1 °C | 1.9 °C | 24.38 mm |
| Annual | -2 °C | 11.9 °C | 538.22 mm |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |