Cimarron, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 40.9 °F (low) to 68.6 °F (high). Annual precipitation averages 21.9 Inches. Cimarron is located in USDA Plant Hardiness Zone 6b. 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 | 18.2 °F | 45.1 °F | 0.55 in. |
| February | 20.9 °F | 49.0 °F | 0.59 in. |
| March | 29.4 °F | 58.7 °F | 1.36 in. |
| April | 38.2 °F | 67.1 °F | 1.89 in. |
| May | 49.8 °F | 77.1 °F | 2.89 in. |
| June | 60.7 °F | 87.5 °F | 3.51 in. |
| July | 65.4 °F | 92.1 °F | 3.19 in. |
| August | 63.5 °F | 89.7 °F | 3.0 in. |
| September | 54.9 °F | 83.0 °F | 1.42 in. |
| October | 41.3 °F | 70.4 °F | 1.94 in. |
| November | 28.5 °F | 57.1 °F | 0.67 in. |
| December | 19.9 °F | 45.9 °F | 0.9 in. |
| Annual | 40.9 °F | 68.6 °F | 21.91 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |