Redlands, Colorado has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 38.8 °F (low) to 66.6 °F (high). Annual precipitation averages 9.7 Inches. Redlands is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.3 °F | 38.9 °F | 0.51 in. |
| February | 23.5 °F | 46.7 °F | 0.57 in. |
| March | 30.5 °F | 58.3 °F | 0.75 in. |
| April | 37.1 °F | 65.5 °F | 1.09 in. |
| May | 46.4 °F | 75.8 °F | 0.91 in. |
| June | 55.0 °F | 88.1 °F | 0.6 in. |
| July | 61.8 °F | 93.4 °F | 0.88 in. |
| August | 59.9 °F | 90.4 °F | 0.95 in. |
| September | 50.5 °F | 81.9 °F | 1.07 in. |
| October | 38.4 °F | 67.6 °F | 1.24 in. |
| November | 27.2 °F | 52.7 °F | 0.57 in. |
| December | 18.2 °F | 39.6 °F | 0.58 in. |
| Annual | 38.8 °F | 66.6 °F | 9.72 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |