Humboldt, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.4 °C (low) to 19.5 °C (high). Annual precipitation averages 1084.8 Millimeters. Humboldt 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 | -5.9 °C | 5.7 °C | 33.78 mm |
| February | -3.9 °C | 8.3 °C | 43.18 mm |
| March | 1.3 °C | 14.2 °C | 70.87 mm |
| April | 6.7 °C | 19.6 °C | 111.76 mm |
| May | 12.9 °C | 24.1 °C | 151.38 mm |
| June | 18.2 °C | 29.3 °C | 137.41 mm |
| July | 20.5 °C | 31.9 °C | 114.3 mm |
| August | 19.3 °C | 31.6 °C | 106.17 mm |
| September | 14.6 °C | 27.4 °C | 116.84 mm |
| October | 7.7 °C | 20.9 °C | 91.95 mm |
| November | 1.4 °C | 13.8 °C | 60.71 mm |
| December | -3.7 °C | 7.3 °C | 46.48 mm |
| Annual | 7.4 °C | 19.5 °C | 1084.83 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |