Clearwater, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.7 °C (low) to 20 °C (high). Annual precipitation averages 894.3 Millimeters. Clearwater is located in USDA Plant Hardiness Zone 7a. 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 | -5.4 °C | 6.1 °C | 22.61 mm |
| February | -3.6 °C | 8.8 °C | 34.54 mm |
| March | 1.3 °C | 14.4 °C | 62.99 mm |
| April | 6.7 °C | 19.6 °C | 81.03 mm |
| May | 12.9 °C | 24.6 °C | 136.14 mm |
| June | 18.5 °C | 30.6 °C | 132.33 mm |
| July | 20.8 °C | 33.1 °C | 101.09 mm |
| August | 19.8 °C | 32.2 °C | 102.11 mm |
| September | 15.2 °C | 28 °C | 71.88 mm |
| October | 8.2 °C | 21.5 °C | 76.45 mm |
| November | 1.4 °C | 13.9 °C | 40.13 mm |
| December | -3.9 °C | 7.3 °C | 33.02 mm |
| Annual | 7.7 °C | 20 °C | 894.32 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |