Brandon, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 36.6 °F (low) to 67.6 °F (high). Annual precipitation averages 14.7 Inches. Brandon is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.3 °F | 44.8 °F | 0.19 in. |
| February | 17.5 °F | 47.6 °F | 0.29 in. |
| March | 25.2 °F | 58.2 °F | 0.55 in. |
| April | 34.1 °F | 65.7 °F | 1.33 in. |
| May | 45.3 °F | 75.6 °F | 2.14 in. |
| June | 56.1 °F | 87.0 °F | 2.29 in. |
| July | 61.6 °F | 92.1 °F | 2.87 in. |
| August | 59.4 °F | 89.0 °F | 2.39 in. |
| September | 50.6 °F | 82.1 °F | 0.77 in. |
| October | 36.0 °F | 68.9 °F | 1.2 in. |
| November | 23.8 °F | 55.3 °F | 0.36 in. |
| December | 15.1 °F | 45.2 °F | 0.29 in. |
| Annual | 36.6 °F | 67.6 °F | 14.67 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |