Campbell, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.8 °C (low) to 17.3 °C (high). Annual precipitation averages 674.1 Millimeters. Campbell is located in USDA Plant Hardiness Zone 6a. 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 | -9.7 °C | 2.3 °C | 13.72 mm |
| February | -8 °C | 4.5 °C | 18.8 mm |
| March | -2.8 °C | 11.1 °C | 37.59 mm |
| April | 2.9 °C | 17 °C | 61.21 mm |
| May | 9.2 °C | 22.6 °C | 109.22 mm |
| June | 15.3 °C | 28.7 °C | 96.01 mm |
| July | 18 °C | 31.2 °C | 99.57 mm |
| August | 16.7 °C | 29.9 °C | 83.06 mm |
| September | 11.3 °C | 26.1 °C | 52.32 mm |
| October | 3.9 °C | 18.9 °C | 54.36 mm |
| November | -3.2 °C | 10.8 °C | 28.45 mm |
| December | -8.1 °C | 4.1 °C | 19.81 mm |
| Annual | 3.8 °C | 17.3 °C | 674.12 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 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |