Oakley, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.9 °F (low) to 66.5 °F (high). Annual precipitation averages 20.8 Inches. Oakley 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.0 °F | 42.8 °F | 0.37 in. |
| February | 18.2 °F | 45.9 °F | 0.52 in. |
| March | 26.1 °F | 56.3 °F | 1.08 in. |
| April | 34.8 °F | 64.8 °F | 1.85 in. |
| May | 46.3 °F | 74.6 °F | 3.13 in. |
| June | 57.3 °F | 86.3 °F | 2.67 in. |
| July | 62.6 °F | 91.4 °F | 3.78 in. |
| August | 60.6 °F | 88.8 °F | 2.9 in. |
| September | 51.3 °F | 81.3 °F | 1.77 in. |
| October | 37.8 °F | 67.9 °F | 1.52 in. |
| November | 25.8 °F | 54.5 °F | 0.67 in. |
| December | 17.5 °F | 43.9 °F | 0.58 in. |
| Annual | 37.9 °F | 66.5 °F | 20.84 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |