Matheson, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.4 °C (low) to 17.2 °C (high). Annual precipitation averages 427.7 Millimeters. Matheson 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.3 °C | 6.1 °C | 8.13 mm |
| February | -9.3 °C | 6.7 °C | 9.65 mm |
| March | -5.2 °C | 11.9 °C | 25.65 mm |
| April | -1.3 °C | 15.6 °C | 46.99 mm |
| May | 4.3 °C | 20.7 °C | 59.44 mm |
| June | 9.6 °C | 27.1 °C | 55.63 mm |
| July | 12.9 °C | 30.3 °C | 67.31 mm |
| August | 12.1 °C | 28.8 °C | 74.42 mm |
| September | 7.2 °C | 25 °C | 29.46 mm |
| October | 0.2 °C | 17.9 °C | 27.94 mm |
| November | -5.8 °C | 11 °C | 13.46 mm |
| December | -10.2 °C | 5.8 °C | 9.65 mm |
| Annual | 0.4 °C | 17.2 °C | 427.73 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |