Milton, Kansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.3 °F (low) to 68.5 °F (high). Annual precipitation averages 33.2 Inches. Milton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.1 °F | 43.6 °F | 0.86 in. |
| February | 26.5 °F | 48.2 °F | 1.29 in. |
| March | 35.0 °F | 58.3 °F | 2.3 in. |
| April | 44.1 °F | 67.6 °F | 3.1 in. |
| May | 55.3 °F | 77.2 °F | 4.91 in. |
| June | 65.2 °F | 87.5 °F | 4.95 in. |
| July | 69.5 °F | 92.3 °F | 3.91 in. |
| August | 67.9 °F | 90.6 °F | 3.68 in. |
| September | 59.9 °F | 83.1 °F | 2.53 in. |
| October | 47.4 °F | 71.1 °F | 2.94 in. |
| November | 35.3 °F | 57.1 °F | 1.47 in. |
| December | 25.8 °F | 45.3 °F | 1.25 in. |
| Annual | 46.3 °F | 68.5 °F | 33.19 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |