Oketo, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 64.3 °F (high). Annual precipitation averages 32.7 Inches. Oketo 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.4 °F | 36.8 °F | 0.71 in. |
| February | 20.1 °F | 41.6 °F | 1.01 in. |
| March | 30.2 °F | 53.7 °F | 2.05 in. |
| April | 40.1 °F | 64.3 °F | 3.11 in. |
| May | 51.8 °F | 74.3 °F | 4.8 in. |
| June | 62.3 °F | 84.2 °F | 4.62 in. |
| July | 66.4 °F | 88.8 °F | 4.41 in. |
| August | 63.9 °F | 87.2 °F | 3.53 in. |
| September | 54.4 °F | 79.9 °F | 3.35 in. |
| October | 41.7 °F | 67.5 °F | 2.45 in. |
| November | 29.9 °F | 52.6 °F | 1.49 in. |
| December | 20.4 °F | 40.5 °F | 1.12 in. |
| Annual | 41.5 °F | 64.3 °F | 32.65 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 |