Benkelman, Nebraska has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 37.2 °F (low) to 66.6 °F (high). Annual precipitation averages 19.1 Inches. Benkelman 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 | 15.0 °F | 42.6 °F | 0.46 in. |
| February | 17.8 °F | 45.7 °F | 0.59 in. |
| March | 25.9 °F | 56.2 °F | 0.91 in. |
| April | 34.8 °F | 64.8 °F | 2.06 in. |
| May | 46.2 °F | 74.9 °F | 2.72 in. |
| June | 57.1 °F | 86.2 °F | 2.82 in. |
| July | 62.6 °F | 91.9 °F | 3.11 in. |
| August | 60.2 °F | 89.6 °F | 2.48 in. |
| September | 50.2 °F | 81.6 °F | 1.38 in. |
| October | 36.3 °F | 68.3 °F | 1.51 in. |
| November | 24.3 °F | 54.0 °F | 0.59 in. |
| December | 16.2 °F | 43.6 °F | 0.5 in. |
| Annual | 37.2 °F | 66.6 °F | 19.13 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |