Overland Park, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.8 °F (low) to 65 °F (high). Annual precipitation averages 41.6 Inches. Overland Park is located in USDA Plant Hardiness Zone 6b. 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 | 20.0 °F | 38.9 °F | 1.33 in. |
| February | 23.6 °F | 43.7 °F | 1.65 in. |
| March | 33.3 °F | 54.8 °F | 2.53 in. |
| April | 43.8 °F | 65.6 °F | 4.06 in. |
| May | 54.7 °F | 74.2 °F | 5.54 in. |
| June | 64.5 °F | 83.7 °F | 5.43 in. |
| July | 68.6 °F | 88.3 °F | 4.44 in. |
| August | 66.6 °F | 87.0 °F | 4.53 in. |
| September | 58.1 °F | 79.5 °F | 4.57 in. |
| October | 45.7 °F | 67.2 °F | 3.49 in. |
| November | 34.3 °F | 54.4 °F | 2.26 in. |
| December | 24.4 °F | 42.4 °F | 1.72 in. |
| Annual | 44.8 °F | 65 °F | 41.55 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |