Seibert, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2 °C (low) to 18.2 °C (high). Annual precipitation averages 422.9 Millimeters. Seibert is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.9 °C | 6.3 °C | 7.62 mm |
| February | -8.1 °C | 7.2 °C | 10.41 mm |
| March | -3.9 °C | 12.8 °C | 23.11 mm |
| April | 0.1 °C | 16.8 °C | 42.42 mm |
| May | 5.9 °C | 22 °C | 64.52 mm |
| June | 11.7 °C | 28.6 °C | 58.42 mm |
| July | 14.9 °C | 31.7 °C | 73.15 mm |
| August | 13.9 °C | 30.4 °C | 66.04 mm |
| September | 9 °C | 26.4 °C | 24.64 mm |
| October | 1.7 °C | 18.6 °C | 29.72 mm |
| November | -4.2 °C | 11.5 °C | 11.43 mm |
| December | -8.7 °C | 6.1 °C | 11.43 mm |
| Annual | 2 °C | 18.2 °C | 422.91 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |