Garden City, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 40.3 °F (low) to 68.7 °F (high). Annual precipitation averages 19.6 Inches. Garden City 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 | 17.7 °F | 45.3 °F | 0.47 in. |
| February | 20.4 °F | 49.0 °F | 0.51 in. |
| March | 28.8 °F | 58.8 °F | 1.15 in. |
| April | 37.4 °F | 67.1 °F | 1.65 in. |
| May | 49.1 °F | 77.1 °F | 2.79 in. |
| June | 60.0 °F | 87.8 °F | 3.0 in. |
| July | 64.8 °F | 92.3 °F | 3.2 in. |
| August | 63.0 °F | 89.8 °F | 2.79 in. |
| September | 54.3 °F | 83.2 °F | 1.34 in. |
| October | 40.4 °F | 70.5 °F | 1.41 in. |
| November | 27.9 °F | 56.9 °F | 0.52 in. |
| December | 19.3 °F | 46.0 °F | 0.75 in. |
| Annual | 40.3 °F | 68.7 °F | 19.58 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 |