Shawnee, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.9 °C (low) to 18.3 °C (high). Annual precipitation averages 1050.3 Millimeters. Shawnee 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 | -6.8 °C | 3.7 °C | 33.27 mm |
| February | -4.8 °C | 6.4 °C | 41.4 mm |
| March | 0.6 °C | 12.7 °C | 63.5 mm |
| April | 6.4 °C | 18.6 °C | 103.63 mm |
| May | 12.4 °C | 23.4 °C | 139.19 mm |
| June | 17.9 °C | 28.7 °C | 138.43 mm |
| July | 20.2 °C | 31.3 °C | 111.51 mm |
| August | 19 °C | 30.6 °C | 115.32 mm |
| September | 14.3 °C | 26.4 °C | 114.81 mm |
| October | 7.4 °C | 19.6 °C | 88.39 mm |
| November | 1.1 °C | 12.4 °C | 57.4 mm |
| December | -4.4 °C | 5.7 °C | 43.43 mm |
| Annual | 6.9 °C | 18.3 °C | 1050.28 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |