Sycamore, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.8 °C (low) to 20.1 °C (high). Annual precipitation averages 1107.9 Millimeters. Sycamore 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 | -5.5 °C | 6.6 °C | 35.56 mm |
| February | -3.5 °C | 9.3 °C | 42.67 mm |
| March | 1.7 °C | 14.8 °C | 71.37 mm |
| April | 7.2 °C | 20.1 °C | 115.06 mm |
| May | 13.2 °C | 24.6 °C | 164.08 mm |
| June | 18.5 °C | 29.6 °C | 151.13 mm |
| July | 20.8 °C | 32.4 °C | 109.22 mm |
| August | 19.7 °C | 32.2 °C | 103.63 mm |
| September | 14.9 °C | 27.8 °C | 104.39 mm |
| October | 7.9 °C | 21.6 °C | 101.6 mm |
| November | 1.7 °C | 14.3 °C | 61.21 mm |
| December | -3.4 °C | 8.3 °C | 48.01 mm |
| Annual | 7.8 °C | 20.1 °C | 1107.93 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 |