Hillsdale, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.6 °C (low) to 19 °C (high). Annual precipitation averages 1040.4 Millimeters. Hillsdale 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6 °C | 4.6 °C | 30.73 mm |
| February | -3.8 °C | 7.2 °C | 43.94 mm |
| March | 1.3 °C | 13.3 °C | 61.72 mm |
| April | 7.1 °C | 19.1 °C | 99.82 mm |
| May | 13.1 °C | 24.2 °C | 151.64 mm |
| June | 18.3 °C | 29.2 °C | 144.02 mm |
| July | 20.6 °C | 31.9 °C | 103.12 mm |
| August | 19.5 °C | 31.3 °C | 106.93 mm |
| September | 14.6 °C | 27.1 °C | 111.76 mm |
| October | 7.9 °C | 20.4 °C | 85.09 mm |
| November | 1.8 °C | 13.2 °C | 57.66 mm |
| December | -3.6 °C | 6.4 °C | 43.94 mm |
| Annual | 7.6 °C | 19 °C | 1040.37 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 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 |