Frankfort, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.8 °F (low) to 64.2 °F (high). Annual precipitation averages 33.3 Inches. Frankfort is located in USDA Plant Hardiness Zone 6a. 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 | 16.7 °F | 37.2 °F | 0.74 in. |
| February | 20.3 °F | 42.1 °F | 1.11 in. |
| March | 30.3 °F | 54.0 °F | 2.04 in. |
| April | 40.3 °F | 64.5 °F | 3.15 in. |
| May | 52.2 °F | 73.9 °F | 4.93 in. |
| June | 62.4 °F | 83.7 °F | 4.82 in. |
| July | 66.5 °F | 88.2 °F | 4.21 in. |
| August | 64.2 °F | 86.8 °F | 3.58 in. |
| September | 54.9 °F | 79.3 °F | 3.24 in. |
| October | 42.2 °F | 67.3 °F | 2.58 in. |
| November | 30.4 °F | 52.8 °F | 1.66 in. |
| December | 20.9 °F | 40.8 °F | 1.22 in. |
| Annual | 41.8 °F | 64.2 °F | 33.28 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |