Winona, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 37.9 °F (low) to 66.5 °F (high). Annual precipitation averages 19.4 Inches. Winona is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.5 °F | 43.0 °F | 0.31 in. |
| February | 18.7 °F | 46.3 °F | 0.45 in. |
| March | 26.2 °F | 56.4 °F | 0.91 in. |
| April | 34.8 °F | 64.8 °F | 1.58 in. |
| May | 46.2 °F | 74.7 °F | 2.71 in. |
| June | 57.1 °F | 86.0 °F | 2.82 in. |
| July | 62.5 °F | 91.2 °F | 3.58 in. |
| August | 60.6 °F | 88.7 °F | 2.89 in. |
| September | 51.4 °F | 81.2 °F | 1.54 in. |
| October | 37.7 °F | 67.9 °F | 1.43 in. |
| November | 25.9 °F | 54.2 °F | 0.59 in. |
| December | 17.7 °F | 43.9 °F | 0.54 in. |
| Annual | 37.9 °F | 66.5 °F | 19.35 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |