Peyton, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.1 °C (low) to 15.9 °C (high). Annual precipitation averages 469.6 Millimeters. Peyton 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. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.6 °C | 5.7 °C | 11.94 mm |
| February | -8.8 °C | 6.1 °C | 12.95 mm |
| March | -5.1 °C | 10.6 °C | 29.97 mm |
| April | -1.6 °C | 13.8 °C | 49.02 mm |
| May | 3.3 °C | 18.8 °C | 58.17 mm |
| June | 8.5 °C | 25.3 °C | 52.32 mm |
| July | 11.9 °C | 28.3 °C | 76.2 mm |
| August | 11.2 °C | 26.8 °C | 86.87 mm |
| September | 6.5 °C | 23.2 °C | 34.29 mm |
| October | 0.2 °C | 16.5 °C | 28.96 mm |
| November | -5.4 °C | 10.2 °C | 16 mm |
| December | -9.4 °C | 5.6 °C | 12.95 mm |
| Annual | 0.1 °C | 15.9 °C | 469.64 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |