Stratton, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 36.3 °F (low) to 65 °F (high). Annual precipitation averages 18.3 Inches. Stratton 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 | 16.4 °F | 43.4 °F | 0.36 in. |
| February | 18.0 °F | 45.1 °F | 0.51 in. |
| March | 25.3 °F | 55.1 °F | 0.92 in. |
| April | 32.9 °F | 62.5 °F | 1.8 in. |
| May | 43.6 °F | 72.0 °F | 2.47 in. |
| June | 54.2 °F | 83.9 °F | 2.54 in. |
| July | 59.9 °F | 89.5 °F | 3.15 in. |
| August | 58.0 °F | 87.1 °F | 3.12 in. |
| September | 49.1 °F | 80.0 °F | 1.08 in. |
| October | 36.0 °F | 65.8 °F | 1.3 in. |
| November | 25.1 °F | 52.9 °F | 0.54 in. |
| December | 16.9 °F | 43.1 °F | 0.47 in. |
| Annual | 36.3 °F | 65 °F | 18.26 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |