Tecumseh, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.5 °F (low) to 63.3 °F (high). Annual precipitation averages 32.2 Inches. Tecumseh 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 | 14.4 °F | 35.0 °F | 0.8 in. |
| February | 18.4 °F | 40.0 °F | 1.11 in. |
| March | 29.0 °F | 52.7 °F | 2.06 in. |
| April | 39.3 °F | 63.8 °F | 2.98 in. |
| May | 51.2 °F | 73.8 °F | 5.26 in. |
| June | 61.6 °F | 83.4 °F | 4.4 in. |
| July | 65.8 °F | 87.6 °F | 4.01 in. |
| August | 63.3 °F | 86.0 °F | 3.35 in. |
| September | 53.7 °F | 79.2 °F | 2.9 in. |
| October | 41.2 °F | 67.2 °F | 2.52 in. |
| November | 28.7 °F | 51.7 °F | 1.57 in. |
| December | 18.9 °F | 39.4 °F | 1.24 in. |
| Annual | 40.5 °F | 63.3 °F | 32.2 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 |