Jetmore, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 41.5 °F (low) to 69.2 °F (high). Annual precipitation averages 24.2 Inches. Jetmore 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 | 18.8 °F | 44.9 °F | 0.64 in. |
| February | 21.3 °F | 49.0 °F | 0.71 in. |
| March | 29.9 °F | 58.8 °F | 1.45 in. |
| April | 39.0 °F | 68.4 °F | 2.08 in. |
| May | 50.5 °F | 77.7 °F | 3.9 in. |
| June | 61.4 °F | 88.3 °F | 3.36 in. |
| July | 66.0 °F | 93.2 °F | 3.93 in. |
| August | 64.1 °F | 91.1 °F | 3.07 in. |
| September | 55.5 °F | 83.9 °F | 1.61 in. |
| October | 41.8 °F | 71.4 °F | 1.84 in. |
| November | 29.3 °F | 57.2 °F | 0.65 in. |
| December | 20.6 °F | 46.0 °F | 0.91 in. |
| Annual | 41.5 °F | 69.2 °F | 24.15 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 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |