Brock, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.8 °F (low) to 63.1 °F (high). Annual precipitation averages 32.9 Inches. Brock is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.4 °F | 34.1 °F | 0.79 in. |
| February | 18.7 °F | 39.4 °F | 1.08 in. |
| March | 29.2 °F | 52.3 °F | 1.93 in. |
| April | 40.0 °F | 64.3 °F | 3.1 in. |
| May | 52.0 °F | 74.4 °F | 5.32 in. |
| June | 62.2 °F | 83.5 °F | 4.68 in. |
| July | 65.9 °F | 87.1 °F | 4.15 in. |
| August | 63.2 °F | 85.4 °F | 3.43 in. |
| September | 53.7 °F | 79.4 °F | 3.08 in. |
| October | 41.5 °F | 67.3 °F | 2.56 in. |
| November | 29.0 °F | 51.4 °F | 1.6 in. |
| December | 19.2 °F | 38.8 °F | 1.2 in. |
| Annual | 40.8 °F | 63.1 °F | 32.92 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |