Hershey, Nebraska has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.9 °F (low) to 63.2 °F (high). Annual precipitation averages 20.2 Inches. Hershey 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 | 13.6 °F | 38.7 °F | 0.28 in. |
| February | 16.1 °F | 41.7 °F | 0.45 in. |
| March | 24.6 °F | 52.7 °F | 0.99 in. |
| April | 33.6 °F | 61.3 °F | 1.96 in. |
| May | 44.6 °F | 71.0 °F | 3.36 in. |
| June | 55.7 °F | 82.5 °F | 3.7 in. |
| July | 61.0 °F | 88.4 °F | 2.96 in. |
| August | 58.8 °F | 86.4 °F | 2.31 in. |
| September | 49.1 °F | 79.0 °F | 1.59 in. |
| October | 35.5 °F | 64.8 °F | 1.8 in. |
| November | 23.3 °F | 51.3 °F | 0.45 in. |
| December | 14.8 °F | 40.1 °F | 0.34 in. |
| Annual | 35.9 °F | 63.2 °F | 20.19 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 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |