Roxborough Park, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.7 °F (low) to 64.5 °F (high). Annual precipitation averages 19.3 Inches. Roxborough Park is located in USDA Plant Hardiness Zone 5b. 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 | 17.7 °F | 46.2 °F | 0.74 in. |
| February | 18.8 °F | 47.2 °F | 0.83 in. |
| March | 26.5 °F | 55.3 °F | 1.88 in. |
| April | 32.8 °F | 60.8 °F | 2.68 in. |
| May | 42.0 °F | 69.4 °F | 2.49 in. |
| June | 51.4 °F | 81.1 °F | 1.62 in. |
| July | 57.8 °F | 87.0 °F | 1.88 in. |
| August | 55.9 °F | 84.9 °F | 2.07 in. |
| September | 47.4 °F | 77.8 °F | 1.69 in. |
| October | 35.1 °F | 65.2 °F | 1.53 in. |
| November | 25.5 °F | 54.1 °F | 0.97 in. |
| December | 17.4 °F | 45.3 °F | 0.89 in. |
| Annual | 35.7 °F | 64.5 °F | 19.27 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |