Alma, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.9 °F (low) to 65.1 °F (high). Annual precipitation averages 24.8 Inches. Alma is located in USDA Plant Hardiness Zone 6a. 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 | 14.9 °F | 39.1 °F | 0.5 in. |
| February | 17.8 °F | 43.1 °F | 0.68 in. |
| March | 27.1 °F | 54.8 °F | 1.37 in. |
| April | 36.9 °F | 64.5 °F | 2.28 in. |
| May | 48.6 °F | 74.3 °F | 3.94 in. |
| June | 59.8 °F | 85.3 °F | 3.63 in. |
| July | 64.9 °F | 90.2 °F | 3.84 in. |
| August | 62.5 °F | 87.8 °F | 3.18 in. |
| September | 52.7 °F | 80.9 °F | 1.74 in. |
| October | 38.8 °F | 67.6 °F | 2.01 in. |
| November | 26.1 °F | 53.1 °F | 0.96 in. |
| December | 17.1 °F | 41.0 °F | 0.66 in. |
| Annual | 38.9 °F | 65.1 °F | 24.79 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |