Bronson, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.5 °C (low) to 19.5 °C (high). Annual precipitation averages 1108.2 Millimeters. Bronson is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.6 °C | 5.8 °C | 36.83 mm |
| February | -3.6 °C | 8.2 °C | 43.43 mm |
| March | 1.4 °C | 14.3 °C | 77.72 mm |
| April | 6.7 °C | 19.5 °C | 119.63 mm |
| May | 12.8 °C | 23.9 °C | 150.37 mm |
| June | 18.1 °C | 29.2 °C | 145.8 mm |
| July | 20.6 °C | 31.8 °C | 112.52 mm |
| August | 19.3 °C | 31.4 °C | 107.44 mm |
| September | 14.8 °C | 27.3 °C | 108.97 mm |
| October | 7.9 °C | 20.9 °C | 91.19 mm |
| November | 1.6 °C | 13.8 °C | 64.26 mm |
| December | -3.6 °C | 7.3 °C | 50.04 mm |
| Annual | 7.5 °C | 19.5 °C | 1108.2 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |