Belmar, Nebraska has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 36 °F (low) to 63.8 °F (high). Annual precipitation averages 18.9 Inches. Belmar 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 | 14.6 °F | 39.9 °F | 0.33 in. |
| February | 17.2 °F | 43.0 °F | 0.47 in. |
| March | 25.0 °F | 53.8 °F | 0.98 in. |
| April | 33.8 °F | 62.2 °F | 2.1 in. |
| May | 44.4 °F | 71.3 °F | 3.08 in. |
| June | 55.1 °F | 82.8 °F | 3.27 in. |
| July | 60.7 °F | 88.8 °F | 2.86 in. |
| August | 58.7 °F | 86.7 °F | 2.19 in. |
| September | 49.0 °F | 79.0 °F | 1.52 in. |
| October | 35.2 °F | 65.1 °F | 1.32 in. |
| November | 23.4 °F | 51.7 °F | 0.45 in. |
| December | 15.1 °F | 40.8 °F | 0.31 in. |
| Annual | 36 °F | 63.8 °F | 18.88 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 |