Dunning, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.2 °F (low) to 61.6 °F (high). Annual precipitation averages 24.4 Inches. Dunning is located in USDA Plant Hardiness Zone 5a. 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 | 12.3 °F | 36.3 °F | 0.5 in. |
| February | 15.2 °F | 39.3 °F | 0.74 in. |
| March | 24.0 °F | 50.2 °F | 1.27 in. |
| April | 33.4 °F | 59.6 °F | 2.78 in. |
| May | 44.5 °F | 70.2 °F | 4.01 in. |
| June | 55.3 °F | 80.9 °F | 3.86 in. |
| July | 60.6 °F | 87.2 °F | 3.06 in. |
| August | 58.1 °F | 85.4 °F | 2.87 in. |
| September | 48.1 °F | 77.8 °F | 2.04 in. |
| October | 34.4 °F | 64.2 °F | 1.86 in. |
| November | 22.7 °F | 49.8 °F | 0.8 in. |
| December | 14.2 °F | 38.6 °F | 0.56 in. |
| Annual | 35.2 °F | 61.6 °F | 24.35 in. |
| 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |