Niobrara, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.6 °F (low) to 60.8 °F (high). Annual precipitation averages 25.2 Inches. Niobrara is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.6 °F | 31.2 °F | 0.49 in. |
| February | 13.2 °F | 36.1 °F | 0.7 in. |
| March | 23.8 °F | 47.8 °F | 1.28 in. |
| April | 35.0 °F | 61.0 °F | 2.94 in. |
| May | 47.2 °F | 72.2 °F | 3.79 in. |
| June | 58.2 °F | 82.7 °F | 3.56 in. |
| July | 63.3 °F | 88.2 °F | 3.06 in. |
| August | 60.9 °F | 86.0 °F | 3.16 in. |
| September | 51.2 °F | 78.1 °F | 2.49 in. |
| October | 37.6 °F | 63.8 °F | 2.22 in. |
| November | 25.0 °F | 47.7 °F | 0.92 in. |
| December | 14.6 °F | 34.7 °F | 0.58 in. |
| Annual | 36.6 °F | 60.8 °F | 25.19 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |