Barneveld, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.1 °C (low) to 13.2 °C (high). Annual precipitation averages 987.3 Millimeters. Barneveld is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.8 °C | -3.4 °C | 38.1 mm |
| February | -9.9 °C | -0.9 °C | 38.35 mm |
| March | -4 °C | 5.8 °C | 52.83 mm |
| April | 2.2 °C | 13.6 °C | 100.08 mm |
| May | 8.7 °C | 20 °C | 114.55 mm |
| June | 14.4 °C | 25.3 °C | 145.8 mm |
| July | 16.6 °C | 27.2 °C | 116.33 mm |
| August | 15.4 °C | 26.3 °C | 111.76 mm |
| September | 10.9 °C | 22.3 °C | 92.96 mm |
| October | 4.9 °C | 15.2 °C | 73.66 mm |
| November | -1.9 °C | 6.8 °C | 58.67 mm |
| December | -8.2 °C | -0.3 °C | 44.2 mm |
| Annual | 3.1 °C | 13.2 °C | 987.29 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |