Lyons, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.9 °F (low) to 60.1 °F (high). Annual precipitation averages 31 Inches. Lyons 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.4 °F | 30.5 °F | 0.68 in. |
| February | 15.8 °F | 34.7 °F | 0.87 in. |
| March | 25.9 °F | 48.0 °F | 1.61 in. |
| April | 37.0 °F | 61.1 °F | 3.42 in. |
| May | 48.9 °F | 72.0 °F | 4.38 in. |
| June | 59.9 °F | 82.1 °F | 4.6 in. |
| July | 63.6 °F | 85.7 °F | 3.29 in. |
| August | 61.0 °F | 83.4 °F | 3.99 in. |
| September | 51.5 °F | 77.2 °F | 3.45 in. |
| October | 38.8 °F | 64.2 °F | 2.29 in. |
| November | 25.7 °F | 48.0 °F | 1.39 in. |
| December | 15.7 °F | 34.7 °F | 1.02 in. |
| Annual | 37.9 °F | 60.1 °F | 30.99 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |